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Topaz Rough
Topaz is a common gemstone that has been used for centuries in jewelry. Its golden brown to yellow color
is classic but is confused with the less valuable citrine, which is sold under the name topaz. The blue topaz that is often
confused with aquamarine is rarely natural and is produced by irradiating and then heating clear crystals. Topaz is the November
birthstone. Topaz is the hardest silicate mineral and one of the hardest minerals in nature. Topaz crystals can reach incredible
sizes of several hundred pounds each! This gem makes very attractive mineral specimens due to its high luster, nice colors
and well formed and multifaceted crystals.
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Awesome eye clean crystal piece from Yen Bai, Vietnam that tapers along one side from 10 mm to 5 mm. Approx.
size (otherwise): 15x13 Weight: 21 cts.
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Nice light yellow piece from Brazil. About half of this stone is pretty thin and would make better cabbing rough than
faceting. Approx. size: 27x16x10 Weight: 24.6 cts.
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Three nice river-tumbled pieces from Africa with a nice light champagne coloring. The picture on the left is light shining
through the stones and the one below is light shining on the stones. There is color zoning in the piece on the right. Approx.
size l. to r.: 13x10x6, 8x9x14, 8x10x17 Weight l. to r.:13.6 cts, 10.3 cts, 13.7 cts.
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Fantastic blocky colorless topaz crystal piece from Yen Bai, Vietnam. Approx. size: 15x14x12 Weight: 26.3 cts.
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