mineral

Likely quartz cluster with iron staining

Quartz (SiO₂), possibly with calcite or feldspar inclusions

AI-generated identification · may be incorrect

White to pale blue-gray, vitreous to pearly luster, irregular clustered crystals, and no obvious cleavage; quartz hardness is Mohs 7 and specific gravity about 2.65. The photograph is too blurred for definitive crystal-form identification.

Identified August 10, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed in a hydrothermal vein or cavity as silica-rich fluids cooled, commonly during igneous or metamorphic activity; exact age and locality cannot be determined visually.

Uses & applications

Common quartz specimens are sold for collecting, display, metaphysical purposes, and educational use; clear high-quality crystals may be cut as gemstones, while industrial quartz is used in glass, ceramics, electronics, and abrasives.

Geological facts

Quartz commonly forms six-sided prismatic crystals ending in pyramidal faces, though clusters can appear drusy or massive. Pale blue coloration may result from inclusions, irradiation effects, or surface coating rather than intrinsic color.

Field identification & locations

Test with a steel file or glass: quartz should scratch glass and resist a steel blade. Common sources include Brazil, Madagascar, Arkansas, the Alps, and hydrothermal veins worldwide; confirmatory tests require locality, hardness, and close inspection.