BIXBYITE PINK TOPAZ MATRIX THOMAS RANGE UTAH MINERALS CRYSTALS GEMS - SCB
Item History & Price
Reference Number: Avaluer:5156100 |
↓ ↓ scroll down for full size photos! ↓ ↓ DescriptionBixbyite & Gem Pink Topaz on Rhyolite Matrix - Location: Thomas Range, Juab Co., Utah. Thumbnail (see photo for more details). Here we have an interesting specimen of a highly modified bixbyite crystal perched on a gemmy 'pink' crystal of topaz that are perched on a matrix of volcanic rhyolite from the Solar Wind claim in the Thomas Range in western Ut...ah. The bixbyite crystal is well formed and sharp and is modified and has a black color along with a brilliant black metallic luster. There is also an amber topaz crystal. Please note these topaz crystals are from a specific area where if these crystals are placed in direct sunlight (artificial light has no effect) for a week or so the sherry color fades away revealing the "true" pale rose pink color of the crystals. The color is there from the start, it is just "masked" by the radiation induced sherry color. Trace amounts of manganese (Mn) are responsible for the pink color. The pink color is completely stable! The topaz crystals pictured here have not yet undergone the "color change" to pink and as such shows the "usual" amber color that the topaz have when they are found in previously unexposed cavities. Photography All of our photos are taken with a 75Watt GE True White incandescent bulb. (unless otherwise stated). Colors may vary if you look at our items in different wavelengths of light (under different bulbs). Here is a pure color chart you can calibrate your monitor to:
Specimen Dimensions Actual measured specimen dimensions are included on the photographs. There is a basic specimen dimension standard listed in our descriptions and titles:
Thumbnail - thumbnail specimens must fit completely inside an "imaginary" 1 inch cube. Look for -THN in our titles.
Miniature - miniature specimens must fit completely inside an "imaginary" 2 inch cube. Look for -MIN in our titles.
Small Cabinet - small cabinet specimens must fit completely inside an "imaginary" 3 inch cube. Look for -SCB in our titles.
Cabinet - cabinet specimens are those larger than 3 inches. (too large to fit inside a 3 inch cube) Look for -CAB in our titles.
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