Rocks Minerals and Fossils







Rock and Mineral Specimens

Rocks and Minerals

The ROCKS AND MINERALS listed below are specialty items such as ulexite, Moqui Marbles and lodestone. Clicking on the accompanying image will provide a larger photo.
To see our extensive list of more common rock and mineral specimens, our geodes, pipestone and steatite for carving, meteorites and tektites or our obsidian and flint for knapping, click on one of the following buttons:

ULEXITE ("TV ROCK") is a mineral of borax whose structure is parallel making it a natural "fiber optic" transmitter. As a result, when you place a piece of ulexite over a written page, the letters and words will be "lifted" or "projected" to the surface of the rock and appear much like a picture on a TV screen.
While there are several grades of ulexite available on the market, we currently offer only GRADE A material because of its clarity. Our specimens are irregular in size and shape. Specimen measurements are commonly based on the length of the longest side of the piece. The accompanying photo illustrates the variation.


Product
(click for detail)
Item # Item Description Price
tv rock
403M
We only sell A Grade specimens.

All specimens are clear with only an occasional inclusion. These small pieces are approximately 1.0 - 1.25" in size.
$ 4.00

403ML
These medium sized pieces are approximately 1.5"in size.
$ 6.00



MOQUI MARBLES: Some of the best areas for collecting Moqui Marbles have been closed to collecting since they were included in a new National Monument. Consequently, supplies of these unique geological specimens are becoming relatively scarce. Fortunitely, we were able to purchase several pounds of legally acquired moquis. Once these are gone we may not be able to get more. If you have been thinking about buying a Moqui, now is a good time.


Product
(click for detail)
Item # Item Description Price
moqui marble
S440S
Small Moqui Marbles - These unique "marbles" were formed millions of years ago when a nucleus of sand was coated by a layer of hematite. These dark gray/black marbles are approximately 0.75 inches in diameter. Shapes vary from round to eliptical. For additional information about Moqui Marbles, click here $3.00 each
$5.50 pair
S440M
Medium Size Moqui Marbles - Same as above but approximately 1.0 inch in diameter. $5.50 each
$10.00 pair
S440L
Large Moqui Marbles - Same as above but approximately 1.5+ inches in diameter. $8.00 each
$14.50pair


apache tear
SM-065-c
Apache Tears in Perlite Matrix - Apache tears are an opaque form of obsidian with a legend behind them. During a battle between the U.S. Cavalry and a small band of Apaches on a mountain near Superior, AZ, the Indians found themselves trapped on the edge of a sheer precipice several hundred feet high. Faced with defeat and capture at the hands of their enemies or death, they chose the latter and leaped from the cliff, dying on the rocks below. The great spirit looked down on their grieving loved ones and turned their tears into opaque, black stones so that all who see the stones will remember the lost warriors. Apache tears are also considered to be good luck stones containing extremely potent protective energies and are believed by some to be helpful in promoting peace and good for grounding and centering. $4.00
apache tear
SM-065-b
Apache Tears - No matrix - These tears are larger specimens than the SM-065c above and come from the same deposit but are NOT in a perlite matirx. $ 2.00

S450
Fulgurite - The name for these natural rarities - Fulgurite - is derived from the Latin (fulgur) meaning "lightning" since they are the result of lightning striking the Earth's surface and melting the soil or rock. They only form where the right combination of soil composition, strike intensity and strike duration occur. Fulgurites (like these) are often hollow "tubes." The void is created by the expansion and escape of gas and moisture resulting from the explosive fusion during the strike. These specimens are from the eastern plains of Colorado where violent summer thunderstorms often occur. $10.00

copper nuggets
SM200b
Native Copper - These beautiful specimens of native copper (shown on the right in the photo) are approximately 1.0 to 1.25 inch + in size. They are "hackley" (having sharp, jagged edges) and have inclusions. They are from the Caledonia Mine in Ontonagon, Michigan. $ 2.25

SM200c
Native Copper - These native copper specomens are the same as the SM200b above except they are LARGER - 1.5+ inches. $ 3.50

SM201b
Copper Nuggets - These beautiful, naturally occuring copper nuggets (shown on the left in the photo) are tumbled specimens with a few inclusions. They are approximately 1.0 to 1.25 inches in size and come from the Keweenaw Peninsula in Michigan. $ 2.25

SM201c
Copper Nuggets - These copper nuggets are the same as the SM201b above except they are LARGER - 1.5+ inches. $ 3.50

purpurite
S455
Purpurite (Heterosite) - [(Mn, Fe) PO4] is the manganese and iron end-member of a beautiful and rare phosphate. It occurs as massive purple and rose colored pieces, which is the result of time and alteration from primary phosphates originally crystallized in a granitic pegmatite. These specimens also contain other phosphates, as well as feldspar, mica or quartz as accents. Specimens are from the Crystal Mountain District, Larimer County, Colorado. $12.00 each

carborundum
S460
Carborundum Crystal - Caraborundum is a beautiful decorative rock displaying a wide spectrum of colors from dark violet to light blue/azure, brown, red to orange and yellow. It forms as a result of the sythesis of quartz sand (SiO2) and carbon (C) in the absence of oxygen at the high temperture of 2,200 degrees Celcius. Under these conditions quartz is transformed into a gaseous phase and penetrates the insoluble carbon. This reaction results in the crystallization of a very hard rock (9 in Mohs scale), resistant to chemical and mechanical agents. Carborundum is used in industry for the manufacture of cutting and abrasive materials. Specimen is approx. 2.0 inch in size $3.95


petrified wood
S335

S336
Petrified Wood with Quartz Crystals - These are very interesting and unique specimens. Petrified wood is actually considered to be a fossil. The organic matter in the original tree was completely replaced by minerals. This type of fossilization is known as permineralization. The term, "to petrify", literally means, "turn to stone." Petrified wood, then, is wood that has turned to stone. In these specimens the core actually crystalized forming hundreds of tiny quartz crystals.

Small specimens are approximately 1" long
Large specimens are approximately 2" long

small $2.50


large - $4.00

zebrastone
S470
Zebra Marble - Zebra Marble comes from Utah, and as the name implies, is a combination of black and white stripes. This rock is 3 to 5-1/2 on Moh's hardness scale, making it an excellent choice for carving, knapping, and cutting. Specimen is approximately 1.5" to 2.0" in size. $ 2.50 ea.

catlinite
S411
Pipestone - Pipestone (Catlinite) is the sacred red clay stone that American Indians use for making prayer and ceremonial pipes. Our pipestone is of excellent quality. We price our pipestone by the piece and try to offer a nice assortment to better suit your specific need. CLICK HERE for available piece sizes and prices plus history and geological information about the famous, historical Minnesota deposit. If you need additional information, please e-mail or call us. $45.00
to
$200.00
steatite
S412
Steatite - In its natural state, Steatite is a gray colored metamorphic rock composed primarily of the mineral talc. It is very soft and can be carved and transformed into a beautiful, lustrous, deep black colored pipe or effigy. For the experienced stone carver, it provides a beautiful contgrast to the traditional red pipestone. CLICK HERE for available piece sizes and prices. If you need additional information, please e-mail or call us. $40.00
to
$60.00
lodestone
SM410b
Lodestone - Available in two sizes:1.00-1.25 and 1.50-2.00 inch specimens. These are great specimens. Specimen shown is covered with iron filings to illustrate the magnetism. Not just "magnetic" like some minerals but a true magnet with definite polarity. The only true magnet in nature. 1.00-1.25"
$ 3.00 ea.


1.50-2.00"
$ 4.00 ea.
rock stereogram
B700
Rocks, Minerals and Gems Stereogram Book - Don't have an actual rock specimen to look at? This book is the answer. Used in combination with stereoscope (sold separately -item A110 - on our supplies page), the photos of rock, minerals and gem specimens will jump off the page. The 64 page 8.5" x 11" soft cover book also features stereo photos of lunar rocks and the six crystal systems. $20.00

B700G
Rocks, Minerals and Gems Stereogram Book With Stereoscope - Everything you need to view the specimens pictured in stereo. $25.00

mineral coloring book
B201
Mineral Coloring Book - NEW EDITION A Dover Coloring Book by T.D. Burns. Hobbyists, collectors, and kid who like to color will enjoy this 48 page, 8.5 x 11 publication. Learn about 36 different rocks and minerals with illustrations of smoky quartz, amethyst, malachite, emerald, celestite, crazy lace agate, aragonite, garnet, and many more. Informative captions are included and full-color versions of each illustration are included on the cover for reference.

We have a limited number of these we purchased at a special price. There may not be any more at this price so order NOW! To purchase specimens see our specimens list.
$ 3.75



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Page last updated on 11/29/13