Rock Identifier
Pink amethyst geode (Quartz (SiO₂), with iron-related pink coloration; likely a quartz geode) — mineral
mineral

Pink amethyst geode

Quartz (SiO₂), with iron-related pink coloration; likely a quartz geode

AI-generated identification · may be incorrect

Pale pink to lilac, translucent crystals with vitreous luster and a drusy interior; quartz is Mohs 7, trigonal, and lacks cleavage. The specimen appears to have a rough outer matrix and hollow crystal-lined cavity.

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Physical properties

Pale pink to lilac, translucent crystals with vitreous luster and a drusy interior; quartz is Mohs 7, trigonal, and lacks cleavage. The specimen appears to have a rough outer matrix and hollow crystal-lined cavity.

Formation & geological history

Forms as silica-rich fluids deposit quartz crystals inside cavities in volcanic rock; coloration is commonly linked to trace elements and inclusions. Such geodes formed over geological time, often in volcanic settings.

Uses & applications

Used for mineral collecting, display, and decorative objects; cut or polished pieces may be used in jewelry.

Geological facts

Pink amethyst is a trade name for pink-colored quartz, rather than a distinct quartz species.

Field identification & locations

Identify by the hollow cavity lined with pointed quartz crystals and hardness sufficient to scratch glass; pink quartz geodes are especially associated with Patagonia, Argentina. The image alone does not establish the precise locality or coloration cause.