Natural Rock Crystal/Quartz Cabochon

Rock Crystal is the clear or white name for quartz, or at least it's one of the most common. ⁠
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This gem is an elongated clear quartz with an error that looked cool; the gouge along the back is from the saw blade when I was cutting the preform. Rather than perfection, I chose to keep the error; I thought it added to the stone. ⁠
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Diameter 25.5 mm by 8.5mm; 2.77g or 13.8ct weight.