Rock Identifier
Sandstone with Quartz Vein (Quartzose Sandstone with Hydrothermal Quartz) — sedimentary
sedimentary

Sandstone with Quartz Vein

Quartzose Sandstone with Hydrothermal Quartz

Hardness: 7 for quartz grains and vein, lower for cement; Color: Tan/brown with white quartz; Luster: Vitreous on quartz crystals, dull on matrix; Crystal structure: Trigonal (quartz); Specific gravity: 2.65

Hardness
7 for quartz grains and vein, lower for cement
Color
Tan/brown with white quartz
Luster
Vitreous on quartz crystals, dull on matrix
Identified More sedimentary
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Physical properties

Hardness: 7 for quartz grains and vein, lower for cement; Color: Tan/brown with white quartz; Luster: Vitreous on quartz crystals, dull on matrix; Crystal structure: Trigonal (quartz); Specific gravity: 2.65

Formation & geological history

Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, predominantly quartz, followed by hydrothermal fluid deposition filling fractures with white quartz.

Uses & applications

Used primarily in educational settings, geological collections, and as decorative aggregate.

Geological facts

Sandstone makes up about 20-25% of all sedimentary rocks on Earth and is frequently found in deserts, riverbeds, and beach environments.

Field identification & locations

Can be identified by its gritty texture, visible sand grains, and distinct contrast with white quartz veining. Common in sedimentary basins worldwide.