Rock Identifier
Lavender chalcedony (possibly light amethyst) pendant (Chalcedony: microcrystalline quartz, SiO₂; exact identification requires testing) — gemstone
gemstone

Lavender chalcedony (possibly light amethyst) pendant

Chalcedony: microcrystalline quartz, SiO₂; exact identification requires testing

AI-generated identification · may be incorrect

Polished, translucent pale lavender teardrop with a vitreous-to-waxy luster. Quartz-family hardness is about 6.5–7 Mohs; crystals are trigonal, though chalcedony is microcrystalline and has no visible cleavage. The gold-colored setting is not identifiable from the image.

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Physical properties

Polished, translucent pale lavender teardrop with a vitreous-to-waxy luster. Quartz-family hardness is about 6.5–7 Mohs; crystals are trigonal, though chalcedony is microcrystalline and has no visible cleavage. The gold-colored setting is not identifiable from the image.

Formation & geological history

Quartz-rich silica precipitated from groundwater or hydrothermal fluids in rock cavities; the age depends on its source deposit. Lavender color may result from trace impurities or irradiation, and the image cannot distinguish chalcedony from amethyst.

Uses & applications

Used as jewelry and decorative material; chalcedony is also used for carvings and ornamental objects.

Geological facts

Chalcedony and amethyst are both forms of quartz, but chalcedony has a fine, intergrown texture while amethyst is visibly crystalline.

Field identification & locations

A photo alone cannot reliably separate lavender chalcedony from pale amethyst or other treated quartz. Check for banding, visible crystal facets, and natural inclusions; a gemologist can confirm identity.