Topaz, Gem Pink Crystal, Utah
A very pretty thumbnail cluster of gemmy pink Topaz, with the main crystal doubly-terminated from the Wah Wah Mountains, Utah.
Topaz, aluminum fluorsilicate, has a formula of Al2SiO4(F,OH)2. The name is from the Greek topazos, a name which is said to be applied to a gem whose identity has been lost.
Measures 1.3 x 0.5 x 0.4 centimeters.
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