Rock Identifier
Faceted brown gemstone pendant, likely smoky quartz or champagne topaz (Probably quartz (SiO₂), smoky variety; alternatively topaz (Al₂SiO₄(F,OH)₂)) — gemstone
gemstone

Faceted brown gemstone pendant, likely smoky quartz or champagne topaz

Probably quartz (SiO₂), smoky variety; alternatively topaz (Al₂SiO₄(F,OH)₂)

AI-generated identification · may be incorrect

Transparent-to-translucent brown, brilliant faceted luster, no visible crystal habit; quartz hardness 7 and topaz hardness 8. The silver-colored metal setting and pendant loop are human-made, but the center is a geological gemstone.

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Physical properties

Transparent-to-translucent brown, brilliant faceted luster, no visible crystal habit; quartz hardness 7 and topaz hardness 8. The silver-colored metal setting and pendant loop are human-made, but the center is a geological gemstone.

Formation & geological history

Smoky quartz forms in silica-rich igneous and hydrothermal environments, commonly in granitic pegmatites; topaz forms in fluorine-rich granitic pegmatites. Ages vary with the host rock, commonly millions to hundreds of millions of years.

Uses & applications

Used in jewelry and mineral collecting; the metal bezel appears designed as a pendant. Value depends strongly on confirmed identity, clarity, cut, size, and metal purity.

Geological facts

The warm brown color could result from irradiation-related defects in quartz or natural color in topaz; the photograph cannot reliably distinguish them.

Field identification & locations

Check refractive index, specific gravity, and hardness; quartz commonly shows curved facet wear and lower density, while topaz is denser and harder. Common sources include Brazil, Madagascar, Russia, and the United States.