Rock Identifier
Pink druzy quartz (possibly quartz-bearing calcite) (Quartz, SiO₂; the pale pink coloration may reflect iron impurities or included feldspar. Exact identification is uncertain from the image alone.) — mineral
mineral

Pink druzy quartz (possibly quartz-bearing calcite)

Quartz, SiO₂; the pale pink coloration may reflect iron impurities or included feldspar. Exact identification is uncertain from the image alone.

AI-generated identification · may be incorrect

White-to-pink botryoidal coating covered with tiny sparkling crystals; vitreous luster and likely Mohs hardness about 7 if quartz (calcite would be 3). No obvious cleavage is visible; specific gravity is approximately 2.65 for quartz.

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Physical properties

White-to-pink botryoidal coating covered with tiny sparkling crystals; vitreous luster and likely Mohs hardness about 7 if quartz (calcite would be 3). No obvious cleavage is visible; specific gravity is approximately 2.65 for quartz.

Formation & geological history

Forms when silica-rich hydrothermal or groundwater solutions deposit quartz crystals in cavities, commonly in volcanic rocks or geodes. The specimen is likely geologically young relative to its host rock, with no age determinable visually.

Uses & applications

Used as a decorative and lapidary specimen, in jewelry, and for mineral collecting; quality depends on crystal sparkle, color, and matrix.

Geological facts

“Druzy” describes a surface densely covered by microscopic crystals, not a separate mineral species. Pink druzy is often sold as rose quartz, although true rose quartz is usually massive rather than sharply crystalline.

Field identification & locations

Look for glassy sparkle, tiny crystal faces, and quartz’s lack of strong cleavage; a hardness or acid test can distinguish it from calcite. Common sources include Brazil, Uruguay, Mexico, and Morocco.