![]() Ray mine is an old time Arizona Copper mine and the material has mixes of Chrysocolla and Malachite, many other copper carbonates and a rare show of Azurite. My Arizona material frequently has abundant quartz to give it great clarity and many pieces also show malachite and/or azurite intergrown in the native stone. ChrysocollaĪ copper silicate frequently mistaken for turquoise. Some pieces have a smaller and more dense pattern, closer to the size of a grain of rice. This particular variety is from British Columbia, Canada. The white patterns can resemble Chrysanthemum flowers or Star Bursts or Snowflake crystals. This is a very dark green (nearly black) and white rock made up of Gypsum clay, Dolomite and Limestone, with internal crystals of Calcite, Feldspar, Celestite or Andalusite. It is not yet well characterized, but I believe it to be a travertine based on the hardness and how it cuts. This find is from Guangdong Province in southeastern China. The coloring and patterns are wildly variable and it has been compared to Picasso Marble for the pattern. This material has developed several different trade names, including Red Creek Jasper, Cherry Creek Jasper and others. This colorful and strongly patterned wood from northern Washington exhibits the best of this property. Structures such as tree rings and the various tissues are often observed features. Petrified wood can preserve the original structure of the wood in all its detail, down to the microscopic level. Mineral-rich water flowing through the sediment deposits minerals in the plant's cells and as the plant's lignin and cellulose decay away, a stone mold forms in its place. The petrifaction process occurs underground, when wood becomes buried under sediment and is initially preserved due to a lack of oxygen. Petrified wood is a type of fossil that consists of fossil wood where all the organic materials have been replaced with minerals while retaining the original structure of the wood. This material is a very hard purple Agate that comes from (oddly enough) Burro Creek in the Sonoran desert, southeast of Kingman. These earrings are usually supplied with surgical steel wires to avoid the tarnish contacting your skin. Due to the high concentration of sulphur, the sterling findings tarnish very quickly. This material is from a breached caldera on Mount Papandayan near the town of Garut. The unusual yellow and orange colors in this material is sulphur. Spectacular new banded jasper from the active volcanic areas in West Java in the Bandung and Garut regencies. When this is pronounced, the sheen has a certain resemblance to that of cats-eye. This silicate of magnesium and iron is from Brazil and it has a distinct fibrous structure. These agates are found in vein deposits with dolomite in the district of Karasburg, Namibia. Aptly named blue lace because of the blue, lavender laced color. This find is from near Medicine Bow, Wyoming.īlue lace Agate (actually a variety of Chalcedony), found in the quiet isolation of the African desert was first uncovered in the early 1960's. There are occasionally quartz crystal inclusions that I like to show off whenever possible. This black manganese oxide occurs here as a feathered or fernlike inclusion in a creamy white agate. I also have selected pieces that are more unusual due to the use of the natural crystalline surface.ĭendritic Psilomalane is nearly as difficult to say as it is to spell. This Canadian reddish feldspar material has a metallic glitter when polished. ![]() Chalcopyrite has been referred to as Fool's Gold because it is such a bright gold color and the black in this material is dark black, creating quite a striking contrast. ![]() It is bright and shiny gold Chalcopyrite in a black Shist from Mexico. This lovely material is known as Apache Gold. This particular material is nicely translucent and is a new sky blue variant from Brazil that shows occasional crystal pockets. This particular material is a new find from the Kandahar province of Afghanistan.Īmazonite is a potassium aluminum silicate variety of microcline feldspar and displays a lustrous reflection which is caused by inclusions. Amazonite is a pale green potassium aluminum silicate variety of microcline feldspar and displays a lustrous reflection which is caused by inclusions.
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