mineral

Milky quartz vein rock

Quartz (SiO₂), likely in a quartz-rich host rock with minor iron-stained minerals

AI-generated identification · may be incorrect

White to translucent, massive to coarsely crystalline quartz with vitreous-to-waxy luster; Mohs hardness 7, no cleavage, conchoidal fracture, and specific gravity about 2.65. Brown coloration likely comes from iron-oxide staining or weathered host material.

Identified August 25, 2026More mineral →

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Physical properties

Formation & geological history

Most likely formed when silica-rich hydrothermal fluids filled fractures in surrounding rock, later cooling to quartz; the specimen may be associated with altered metamorphic or igneous rock. Its precise geological age cannot be determined from the photograph.

Uses & applications

Quartz is used in glass, ceramics, electronics, abrasives, engineered stone, and occasionally jewelry; attractive pieces are collected as cabinet specimens. This rough material has limited commercial value unless crystals, unusual inclusions, or gold are present.

Geological facts

Milky quartz gets its opacity from microscopic fluid inclusions, fractures, or mineral impurities. Quartz veins can occur with sulfide ores and gold, but no metallic mineral can be confirmed visually here.

Field identification & locations

Identify it by its glassy appearance, hardness sufficient to scratch ordinary glass, lack of cleavage, and white translucent fracture surfaces. Common settings include hydrothermal veins in mountain belts and weathered ore zones.