sedimentary

Sandstone with Quartz Vein

Arenite with Crystalline Silica (SiO2)

AI-generated identification · may be incorrect

Hardness: 6-7 (Mohs); Color: Tan, grey, beige with white crystalline areas; Luster: Dull/Earthy (matrix) to Vitreous (quartz); Texture: Granular/Clastic; Cleavage: None.

Hardness: 6-7 (Mohs)
Color: Tan, grey, beige with white crystalline areas
Luster: Dull/Earthy (matrix) to Vitreous (quartz)

Identified July 1, 2026More sedimentary →

Explore Sandstone with Quartz Vein in the encyclopedia →

Identify your own rocks.

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

App Store Google Play

Physical properties

Hardness: 6-7 (Mohs); Color: Tan, grey, beige with white crystalline areas; Luster: Dull/Earthy (matrix) to Vitreous (quartz); Texture: Granular/Clastic; Cleavage: None.

Formation & geological history

Formed from the lithification of sand-sized minerals or rock grains (mostly quartz and feldspar) in desert, river, or ocean environments. The quartz pocket or vein formed later via hydrothermal mineral deposition in rock cavities.

Uses & applications

Commonly used in construction, road base, and as a source of industrial silica sand. Samples with unique crystal pockets are collected as hobby specimens.

Geological facts

Sandstone accounts for roughly 20-25% of all sedimentary rocks on Earth. The visible grains signify the energy of the environment where the sediment was originally deposited.

Field identification & locations

Identify by its 'sandpaper' feel and visible grains. Often found in canyons, riverbeds, and sedimentary basins. Look for the contrast between the porous host rock and the hard, crystalline quartz infill.