Strata Gem

June 2002

 

President’s Message

 

We had a big turn out at our meeting this month.

 

We discussed our show in September. All our dealers contract are back. The show is going to be here before we know it.

 

Our field trip to Ophir was a great success. I would like to say GOOD JOB to all the members that came out, we had a good time and collected a lot of rocks. That is what this club is all about, the gathering of friends and rocks.

 

I would like to thank Myron, Janet and Henry for their work in getting together and getting the new tables. And for Matt for getting the patches done for our vest. We all need to work together to get these things done for the club. I really appreciate everyone and all their hard work.

Always follow a path of love and friendship.

Donna M. Chavez

President

Tooele Gem And Mineral

Tooele Senior Citizens Center

May 14th 2002

 

The meeting was called to order by president Donna Chavez every one was welcomed.  The minutes of the last meeting were read and approved. Jay reported that he will be picking up some rock mostly wood, it has already been broken up into grab bag size, we will be using it at our grab bag fill. Dennis talked about the silver casting class, Henry Chavez said we could hold the class at his home, it will be on the 25th of May at 10:00 AM. Dennis showed the club the awards, which he won 1st for the articles that he wrote, and 2nd for Darrell’s poem and 3rd for the Strata Gem.

 

Our next meeting will be the rock bag fill to be held at Jay Woods place. There will be a potluck dinner so bring your favorite food dish. Dennis Chapman won the door prize. The meeting was adjourned.

 

Minutes Submitted by,

Larry Wilson

Secretary

Members News

Grab Bag Fill:

June 8th, 9:00 AM at Jay & Erla Woods.

 

Strange Relic Retraction:

This was one of the funnest retraction I’ve had to write. The editor I got "Strange Relics from the Depths of the Earth" emailed me saying it might have been an April fools joke, but I remember seeing it on TV 15-20 years ago. I found this article that has a reasonable explanation http://www.eskimo.com/~pierres/coso/coso.html. It seems to be a 1920’s champion spark plug. I still wonder how it got into the middle of a nodule (hardness of 3), but I’m no geologist J.

Going Out Of Town:

I will be out of town the month of July, so I have to do 2 newsletters before the end of the month. Please, if you have anything for July or August, get it to me ASAP!!!

 

Scientists Report Discovering Trove Of Fossilized Jellyfish In U.S. Quarry

 

Pasadena, Calif. (AP) – More than a half-billion years ago, thousands of jellyfish were washed up in a small lagoon, stranded by a freak tide or storm and buried by sand just hours later.

 

Fossilized impressions of those jellyfish, some up to 3 feet in diameter, have now been discovered in a Wisconsin quarry; in what scientists say is one of the largest finds of its kind in the world.

 

"Preservation of a soft-bodied organism is incredibly rare, but a whole deposit of them is like finding your own vein of gold," said James Hagadorn, a scientist at the California Institute of Technology and co-author of an article reporting the find in February’ issue of the journal Geology.

 

The jellyfish, which have no durable body parts, were fossilized during the ancient Cambrian period, when the world’s oceans exploded with a diversity of life. The creatures were apparently buried within hours after being stranded in a shallow lagoon some 510 million years ago.

 

Fossil dealer Dan Damrow, an article co-author, discovered the jellyfish about four years ago in a quarry in Mosinee, Wis., about 200 miles northwest of Milwaukee. In the quarry, beds of sandstone lie stacked horizontally in neat layers – perfect for flagstone and other commercial uses.

 

"These could have ended up as someone’s bathroom floor or in their side garden," Hagadorn said. Hagadorn said they found fossilized jellyfish in seven layers in the quarry, encased in about 12 vertical feet of rock representing a span of time of up to 1 million years.

 

The layers of rock also record the delicate ripples that striped the ocean bottom in what were presumable shallow coastal waters.

 

"It gives you a kind of aura of standing in this instant in time," Damrow said. "You’re standing right on that beach just as it formed."

 

From Lubbock Avalance-Journal, via Chaparral Chatter, 3/02

Via Osage Hills Gems 4/02

 

Water As Fuel

 

‘This seemingly strange idea originated in a remark of Sir Humphrey Davy that, on the problematic exhaustion of coal, men will have recourse to the hydrogen of water, as a means of obtaining light and calefaction (heat). As the gas used for lighting consists of hydrogen and a little carbon, it is only the latter which would have to be added, after the water had been decomposed into its elementary parts of hydrogen and oxygen."

 

--from the Scientific American October, 1847 issue; via Scientific American October 1997 (Contributed by Taylor Hunt)

via Hy Grader 6/01

 

The Goldstone Story

From The Rocky Reader, 12/2000

via High Country Gleamings

 

Far hundreds of years, men everywhere have tried to transform base metals into gold. In olden times, monks of a northern Italian monastery were also engaged in this task. For many years these monks labored to recover the precious metals in their retreats. Then, about 1590, after years of effort, the monks happened to make a very beautiful, sparkling material with innumerable gold specks. The monks had failed to make gold, but they did succeed in producing a marvelous specimen, which they properly named "goldstone". Goldstone was used for decorative purposes until 1890 when it was imported to the USA, after it was found to be suitable for cutting and polishing for jewelry. The monks called the goldstone the "adventuring" stone, as it is impossible to foretell the success of a batch for many weeks. To this day, due to lack of modern production methods, a batch of material can turn out unsuitable for use because of the uncertainty of the heating and cooling process. Production of the goldstone has remained a secret method all these years — concealed from everyone. Many have tried to duplicate goldstone, but to date no one has succeeded.

 

The bulk of the goldstone, after removal from the retorts, is shipped to the major stone cutting and polishing centers of the world. Germany is perhaps the most important cutting center, although much cutting is also done in Austria, Holland, and Japan.

 

In recent years, a blue goldstone has been developed from the same process as the goldstone. This stone has been called "Blue Magic", Some people claim it will glow in the dark after being exposed to sunlight. Goldstone will not discolor, fade, or lose its beauty in any way, making it a handsome keepsake.

 

Another new goldstone on the market is made by a slightly different process, but with the same sparkling beauty. It can be made into lovely flat-topped cabs, but is more difficult to work with when making domed cabs. We have also received news of another new goldstone, black in color, called the "Midnight Stone". It is made by the same process as the brown and blue and is s beautiful stone to work with. Goldstone is essentially glass; the inclusions are caused by copper filings.

 

The preceding and following articles are taken from High Country Gleamings, M. L. Johnson, editor, Volume 23, Edition 2, February 2001.

 

Via Via Gravel Gazette 2/02

 

Looks Like Rocks To Me

By Edna House

 

Very plentiful was my family tree,

Two sisters, Mother and Daddy welcomed me,

That we were poor, was a sure fact indeed.

Running barefoot on rocks, was a summer occurrence for me.

 

On the farm or in town,

Rocks in abundance were kicked and thrown around.

When asked repeatedly if true crystal they be,

My Dad would say, "Just looks like rocks to me!"

 

The uses were endless, like rocks for playing jacks.

For hopscotch find small ones, oh my aching back.

Can you believe, to scotch the car?

Why we even kept some in a jar!!

 

As we grew older, books revealed precious stones.

Emerald, pearls and sapphires were our birthstones.

Beaus gave us diamonds, identified by Dad as "A Hot

Springs diamond; a precious stone he would ask"? Looks,

"Just like a rock," he would say at the last.

 

Over the years my collection has grown,

Arrowheads by a Chip-a-Lotta, a tribe unknown,

Sand art, spheres, bookends, and gem trees,

In my home are treasures to me.

 

Oh my dresser overflows with jewelry precious to me,

Garnet, ruby and topaz but no tourmaline.

Some costume, some real, some fake you would see.

Not any at all that ," Looks like rocks to me!"

 

From The Rock Rattler 1/02

 

What is the Simplest Gem & What is the Most Complex?

 

The Diamond is the simplest gem - the chemical composition being all of carbon and crystallized isometrically. Tourmaline is the most complex. It is said that tourmaline’s chemistry is more like a doctor’s prescription than the makings of a respectable material.

Via Rockhound Rumblings 9/00

via Hy Grader 10/01 & others

Water

Approximately 70% of the earth’s surface is covered with water. However, only 1% is available for drinking water.

Oceans 97.24%

Polar Ice, Glaciers 2.15%

Ground Water 0.615%

Lakes 0.017%

Atmosphere 0.0001%

Rivers 0.00001%

 

How much Water is Used:

Taking a bath or shower, 15-25 gallons per day

Washing dishes, 15-50 gallons per day

Cooking, 10 gallons per day

Drinking, 0.5 gallons per day

Washing the car, 100 gallons per time

Flushing the toilet, 4-7 gallons per day

 

Information from Central Utah Water Conservancy District. Utah, the second driest state, having only 13 inches average precipitation.

 

taken from THE LITHNICS 4/2000

Via Glacial Drifter 10/01

 

Sea Monsters From Our World Famous Chalk Beds

by TJ Meehan

 

In 1911 an expedition of C. D. Bunker and "his boys: from the University of Kansas Natural History Museum went fossil hunting and recovered Bunker’s biggest boy: the largest mosasaur specimen in the world. Mosasaurs are the giant sea lizards of late dinosaur time 65-90 million years ago (the late Cretaceous Period). They lived throughout the world’s oceans, but Kansas is the best place to hunt for them. Kansas chalk beds have more and better preserved mosasaurs, as well as other marine life, than any other chalk beds in the world--even the white Cliffs of Dover in England. Kansas has marine fossils from this period because it was under water during most of this time. A shallow ocean, the Kansas—Nebraska Sea, stretched from the Gulf to the Arctic Sea, cutting North America into two lands.

 

Bunker’s Boy (B.B.) is a type of mosasaur named Tylosaurus. Tylosaurus is the "T. rex" of mosasaurs. B.B.’s head was 6 feet long and the remaining body was about 55 feet. Mosasaurs were not dinosaurs, but certainly were large reptiles! (Remember that no dinos had wings or flippers.) Mosasaurs were related to the largest living lizards, the Komodo dragons. Fossil stomach remains show that mosasaurs had similarly voracious appetites. With extra big mouths and sharp teeth, they apparently ate anything they could catch: fish, birds, squid, ammonoids, and turtles. Tylosaurus even ate other mosasaurs! Mosasaurs lived 15 million years before whales, filling that niche of top ocean predator.

 

Other marine fossils from the chalk beds include long—necked and short—necked plesiosaurs (another group of large sea reptiles), sharks, the biggest bony fish ever (Xiphactinus, up to 18 feet), giant clams, and giant squid. The large flying reptile, Pteranodon, is also found in the chalk beds. Eighty million years agok Pteranodon soared over the ocean looking for schools of fish. Kansas has by far the most fossils of this most famous pterosaur. Discovered soon after Archaeopteryx in the late 1800’s, Kansas toothed birds also helped put our chalk beds on the world map. These birds include Ichthyornis, which was tern—like, and the specialized diver, Hesperornis, which was loon-like.

 

Mosasaur skeletons weathering out of the chalk beds in England were one source of dragon myths. It has only been in the last 300 years that bones and other traces of life weathering out of rocks have been recognized as remains of ancient life. In a mosasaur skeleton, one can "see" a dragon’s sinuous body, a narrow head with sharp teeth, and small wings (in what are really the paddle bones). A 15th century English painting of a dragon head is a dead ringer for a mosasaur reconstruction. Many myths of giants and other odd beasts have been traced to particular fossils. The Cyclops myth was derived from dwarf mammoth skulls in the caves of Crete, and the griffin sculptures of Assyria and Babylon were "inspired" by Protoceratops skeletons of central Asia. The Chinese often refer to fossil bones as dragon bones.

 

A reconstruction of B.B.’s skeleton is now on display. To see more of life in this region 75 million years ago and other past ages, as well as what’s going on with the living, please visit your local Natural History Museum at the University of Kansas, Lawrence.

 

-we study the life of the planet.-

 

Dr. TJ Meehan, Volunteer Coordinator of KU Dino Project, Dept. of Vertebrate Paleontology, Dyche Hall, University of Kansas, Lawrence, KS 66045—2454 vrtpaleo@ukans.edu

the above article taken from THE POST ROCK 12/99

The Glacial Drifter 10/01

June Birthdays

Birthstone:

Ancient

Emerald

Modern

 Pearl, Moonstone, or Alexandrite

Blaine E. Berry 29

Darrel Bolinder 26

Ardith Higley 2

Larry Higley 14

Lewis Wall 13

 

History Lesson 101:

 

When the white man discovered this country, Indians were running it…there were no taxes. No debts, and the women did most of the work. All the Indian men did was hunt and fish as much as they wanted, whenever they wanted!

 

Here’s the real kicker. The white man was dumb enough to think that he could improve on a system like that!!!!

 

Via Golden Spike News 11/01

 

Cultured Pearls Revealed to be an Australian Invention

excerpts from article by David "Dos" O'Sullivan Source: Austasia Aquaculture: 12(4) August-September 1998

 

One of the best-known pearl farmers in Queensland is John Saltmarsh, whose family-run Roko Pearls has been operating in Torres Strait for more than 15 years. At a recent conference, John surprised a lot of people by pointing out that Mikimoto was not the first person to produce cultured pearls-it was an Australian fisheries officer in 1890.

 

"Everyone considers the famous Mikimoto to be the discoverer of the secret that had eluded man throughout history-a method of making a pearl oyster produce a pearl," John Saltmarsh told Austasia Aquaculture. "The story of the young Japanese noodle dealer's son with his dream of making pearls available to ordinary women of the world has been told many times, most recently in a documentary, "The Mystique of the Pearls", shown on national TV. Mikimoto was indeed one of the truly great entrepreneurs of our time but he didn't invent the cultured pearl."

 

Saltmarsh said that while Mikimoto probably did more than any other man to build the pearling industry, he did not discover the secret of the pearl. "In 1907, two other Japanese independently applied for a patent over a technique for producing a spherical pearl in a pearl oyster. One, Mr. T. Mise, was a village carpenter; the other, Dr. Nishikawa, was a science graduate. One lived on the north island of Japan, the other on the south island." The story is certainly strange as the two men did not know each other and had never met. Yet within a week of each other, they both submitted patent applications for a method of producing cultured spherical pearls. And the technique in both applications was identical.

 

Saltmarsh said that Mikimoto then took the process to glory, but the patent for the technique and principles was granted to Dr. Nishikawa, to be jointly owned by Mr. Mise. But how did Dr. Nishikawa and Mr. Mise discover the secret of pearl making? To answer this, we need to go to Australia.

 

In Northern Australia, the late 1800’s were the era of the great Japanese pearling fleet, the Arafura pearling fleet. According to Saltmarsh, at times more than 400 Japanese vessels were working Torres Strait and as many as 2,000 Japanese nationals were based at Thursday Island. Pearl shell was a valuable commodity on the world market, which was by the Japanese. "The Commissioner of Fisheries in Queensland at that time was William Saville Kent," Saltmarsh said. "He was fascinated by pearls. He studied the technique for culturing half pearls used by the Chinese, who for many years had been producing mother of pearl images of Buddha. They would drill a hole through the shell of a freshwater pearl oyster, place a tiny brass Buddha against the inside of the shell under the mantle, then secure it in place with a piece of thread pulled through the hole that they'd drilled in the shell. This was also the technique used by G. S. Streeter. Saville Kent improved on this by securing the nucleus with hot resin glue. He started Australia's first cultured pearl farm in Albany Passage, near Thursday Island. His half pearls fetched high prices and he spent years experimenting with round pearls. In 1890 he was successful and produced a genuine spherical cultured pearl."

 

Saltmarsh said it was doubtful that Saville Kent fully appreciated the worth of what he had done, as he was willing to discuss his technique with anyone who showed an interest. He promised to publish an account of his method, perhaps with an eye to the commercial possibilities, but he never got around to it. When he died in 1906, his farm at Albany was sold, together with his techniques and methods. Dr. Alvin Seale in the Journal of Science in July 1910 reported that the Australian who had purchased Saville Kent's experimental pearl farm had succeeded in growing spherical pearls using techniques bought with the farm. "The gentleman must have lost interest, however, as there are no further records of the Albany farm until recent times," said Saltmarsh.

 

Back to Dr Nishikawa and Mr Mise-they did have one small point of contact. Both Mr. Mise's stepfather, with whom he lived, and Dr. Nishikawa were fisheries officers with the Arafura Pearling Fleet at Thursday Island at the time that William Saville Kent just couldn't help talking about his technique for culturing round pearls. In 1968, author Joan Young Dickinson was the first to make public this amazing coincidence in her The Book of Pearls, "It seems that some time around the turn of the century an unsung Australian oysterman hit upon the method... and passed accidentally his secret unwittingly to these two brilliant young Japanese." Australian cultured South Sea pearls are recognized as the premium product in a very specialized and valuable market, so it's nice to know that an Australian was responsible for discovering the process.

 

(from www.spc.org.nctcoastfish/News/POIB/12/11BCultured.htm, public information webpage of the Secretariat of the Pacific Community for Coastal Fisheries, based in New Caledonia, located via short excerpted article which appeared in Geolap News 8/00) via The Pegmetite, 1/02

 

Via The RockCollector 3/02

 

Polishing Jade

from LapDigest #285 MSG2

 

I started researching jade polishing several years ago when I took over our club shop. I could get a polish on jade but trying to tell someone else how to do it didn't thrill me much. What I found, when I started reading, was that most authors had the same problem I had, they could do it, but telling someone else how was hard. The problem, it seems to me, is that most of the directions are "technique sensitive", and telling someone that "this piece of jade needs more pressure than that one", or some other such description, isn't easy to explain in print. What I wanted was some way of polishing jade that I could tell someone and not have to worry about their being able to do it, regardless of the quality of their jade.

 

I had better luck talking to cutters about their methods than reading about it. Al Youngquist of "Jade and More" pointed me at Rapid Polish on wood. I found it worked better than anything else I had ever used.

 

At this point I set up a series of experiments to see what the other things affected the polish. The most common thread in the books seems to be: "sand it dry on a worn 600 grit belt." I didn't have a used one so I used a new one. Using the belt wet produced essentially the same results as the diamond belt. But dry, the surface started to look like it was almost ready to polish. I also tried a new 400 grit belt. The difference between the 400 and 600 was visible but small.

 

My next step was to find a finer grit silicon carbide. Rio Grande carries 3M 15 and 9 micron belts and is the only source of finer grit belts I have found. Use their "micron graded," not the "Trizact" belts. The "Trizact" belt is designed not to load and won't work. If you are using a Diamond Pacific "Genie" or similar machine, sanding disks on a rubber backed disk work fine. I found a supply of 1200 grit PSA backed 6 inch disks at Red Hill Corporation. I have also used 1200 grit paper and glued it to a Crystalite "Flexodisc." Dry sanding isn't speed sensitive but you may want to keep a pan of water handy to keep the jade cool enough to stay on the dop stick.

 

What I did find, however, is that the differences are small and a "worn" 600 grit belt is about the same as a 1200 grit belt new. I was able to follow a dry 400, 600, or 1200 grit belt with the Rapid Polish and get a good polish with little or no orange peel. It was just a case of being able to improve the finish with the added steps.

 

I think the sanding surface is being loaded by jade particles whose size is determined by the grit size. This jade surface then "burnishes" the jade cab's surface. I think that the surface of the "burnished" cab is harder than the "un-burnished" jade. This harder surface is then less subject to orange peel. This difference in hardness, if real, is small. I believe that this surface change is what has led to some of the different jade polishing methods. If the time you spend on the polishing buff is short enough after the dry sanding the jade is less sensitive to how it is polished. But if you leave the jade on the buff long enough you may go through the "hard" surface and get orange peel. The Rapid Polish never seemed to go through the "hard" surface.

 

I have tried different polishing pads and found the differences to be visible but small. There is an area where different jades seem to respond differently. Bill Myers, from the company that produces Rapid Polish, suggested using the paper side of a sanding disk. I tried that and found the results about the same as wood disks, although perhaps easier to acquire. I don't think the pad life would be as good either. The harder leathers helps keep the surface smoother but the softer ones seem to give a brighter polish. I think the answer is: don't worry about it.

 

I tried other polishes after the initial Rapid Polish and found that Reynolds POLY-AL F improved the polish. This is a .2 micron alumina available from Diamond Pacific. Other polishes in the .1 to .2 micron range would probable work as well.

 

Rapid Polish also isn't rapid. It takes about three or four times as long for me to polish a jade cab as other polishes on other stones, it just does a better job. Many cutters are now recommending adding some vinegar to the polish. I have tried adding some to the polish and have a small spray bottle to spray the polishing disk. Sometimes I think it helps, sometimes I think it doesn't. At least it doesn't seem to hurt anything, give it a try. It does seem to deteriorate the leather pads faster. Ken Fitzgerald of Fitzcorp, Inc. recommends mixing any alumina one-to-one by weight with liquid dish-washing soap and use as though it were diamond paste. Fitzcorp has done extensive laboratory testing of polishing compounds and plans to publish a book soon on tumbling and polishing -- watch for it.

 

So, after all this, what do I recommend? Diamond: Don't sand past 1200 or 1800 grit. Silicon carbide: Sand through 600 wet. Dry sand on 600 grit until the jade burnishes. Polish with Rapid Polish on what ever pad you have. If you are happy, stop. If you want to try for a better polish, start by getting some 1200 grit silicon carbide disks or belts. If that isn't good enough, try the different types of wood and/or leather polishing disks. Try other polishes after the Rapid Polish, sometimes you can improve the finish.

 

I know there are other ways of polishing jade but most are sensitive to the type of jade being polished and technique being used. This method has proved to be the least sensitive of any I have yet found.

 

The companies mentioned can be reach at:

Crystalite Corp. 8400 Green Meadows Dr. Westerville OH 43081 (800)777-2894

Diamond Pacific Tool Corp., 2620 W. Main St., Barstow, CA 92311 (800)253-2954

Fitzcorp, Inc. P. O. Box 565 Point Blank, TX 77364 (409)377-2409

Jade and More, P.O. Box 2381 Castro Valley, CA 94546 (510)538-7136

Myers Rapid Polish, P.O. Box 646, Keller, Texas 76244 (817)379-5662

Red Hill Corporation, P.O. Box 4234 Gettysburg, PA 17325 (717)337-1419

Rio Grande, 7500 Bluewater Rd. NW, Albuquerque, NM 87121 (800)545-6566

Dick Friesen