gemstone
Brown faceted gemstone, possibly smoky quartz
Undetermined; smoky quartz is SiO₂
AI-generated identification · may be incorrectSmall, dark-brown, transparent-to-translucent faceted stone with vitreous luster. If smoky quartz, hardness is 7 Mohs and its crystals are hexagonal; the image is insufficient to confirm the identification or assess clarity and cut quality.
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Physical properties
Small, dark-brown, transparent-to-translucent faceted stone with vitreous luster. If smoky quartz, hardness is 7 Mohs and its crystals are hexagonal; the image is insufficient to confirm the identification or assess clarity and cut quality.
Formation & geological history
If quartz, it formed from silica-rich fluids in cavities or veins, commonly in granitic rocks; the specimen’s geological age and origin cannot be determined from the image.
Uses & applications
Faceted stones may be used in jewelry or collected; identification is needed before assigning a specific use or value.
Geological facts
Several brown gemstones—including smoky quartz, garnet, and tourmaline—can look similar in a photograph.
Field identification & locations
Check hardness, refractive properties, and inclusions, or have a gemologist test it; color alone is not diagnostic. No locality can be inferred from the image.
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