Rock Identifier
Pink faceted gemstone, likely amethyst or pink quartz (Quartz (SiO₂), likely pale amethyst; exact identification requires testing) — gemstone
gemstone

Pink faceted gemstone, likely amethyst or pink quartz

Quartz (SiO₂), likely pale amethyst; exact identification requires testing

AI-generated identification · may be incorrect

Mohs hardness 7; transparent to translucent, vitreous luster, trigonal crystal structure, and no prominent cleavage. The pink-purple color may result from trace iron, irradiation, or treatment; the metal setting is not geological.

Identified More gemstone
Explore Pink faceted gemstone, likely amethyst or pink quartz in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Mohs hardness 7; transparent to translucent, vitreous luster, trigonal crystal structure, and no prominent cleavage. The pink-purple color may result from trace iron, irradiation, or treatment; the metal setting is not geological.

Formation & geological history

Quartz crystallizes in silica-rich hydrothermal veins and igneous cavities, commonly over millions of years. Natural pale amethyst is widespread in volcanic geodes, especially in Brazil and Uruguay; pink quartz varieties occur in granitic pegmatites.

Uses & applications

Used in jewelry and mineral collections; value depends on clarity, cut, color, size, and whether the color is natural or treated.

Geological facts

Amethyst is purple quartz, while pink quartz is usually cloudy and rarely faceted. A scratch test should not be used on jewelry; quartz typically scratches glass but not hardened steel.

Field identification & locations

Likely quartz if it shows glassy luster and remains unscratched by a steel blade; a refractometer, specific gravity, and gemological spectroscopy can distinguish amethyst from other pink gems. Common sources include Brazil, Uruguay, Madagascar, and the United States.