gemstone
Faceted colorless gemstone, likely quartz (rock crystal)
Quartz, SiO₂
AI-generated identification · may be incorrectIf quartz: Mohs hardness 7; colorless, glassy luster, trigonal crystal structure, and no cleavage. The image alone cannot confirm the material; glass or another clear gem may look similar.
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Physical properties
If quartz: Mohs hardness 7; colorless, glassy luster, trigonal crystal structure, and no cleavage. The image alone cannot confirm the material; glass or another clear gem may look similar.
Formation & geological history
Natural quartz crystallizes from silica-rich fluids in veins and cavities over geologic time; faceting is human workmanship. The stone’s natural origin and age cannot be determined from the photo.
Uses & applications
Faceted quartz is used in jewelry and collected as a gemstone; clear synthetic glass imitations have little mineral value.
Geological facts
Quartz is abundant in Earth’s crust and commonly occurs as six-sided crystals, though this specimen has been cut.
Field identification & locations
A gemologist can distinguish quartz from glass and other gems using refractive index, inclusions, and hardness testing; avoid scratch tests on a finished stone. Quartz is common worldwide.
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