Sandstone
Rock made of quartz, feldspar
Common
Sand grains, mostly quartz and feldspar, cemented into rock: a fifth to a quarter of all sedimentary rock. Its beds stand up as cliffs, like the red rock deserts of the American Southwest, and hold water and oil in their pores.
Rock
- Kind of rock
- Clastic sedimentary rock
- Rock family
- Sandstone, shale and clay
- Texture
- clastic (grains cemented together)
- Also contains
- Mica
- Shapes the land into
- Cliff
- How it forms
- Sand-sized grains (0.06 to 2 mm) laid down by water or wind are buried and cemented by another mineral.
- Uses
- Easy to work: temples, churches, houses and paving since prehistory.
Crystallography
- Habits
- Granular, Massive
Physical properties
- Luster
- Dull
- Colors
- yellow, brown, red, gray, pink, white
- Transparency
- Opaque
Geology
- Origins
- Sedimentary
- Geography
- worldwide, USA (Arches National Park)
Classification
- Rarity
- Common
- Gem quality
- No
Sources
- Sandstone. Wikipedia.
- C. R. Hallsworth, R. W. O’B. Knox, BGS Rock Classification Scheme, Volume 3: Classification of sediments and sedimentary rocks (Research Report RR 99-03). British Geological Survey, 1999.
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