Sandstone

Sandstone properties at a glance

Geology & background

Forms when sand grains are cemented together by silica, calcite, or iron oxide over millions of years.

Used in construction worldwide, from ancient Egyptian temples to modern buildings.

How to identify Sandstone

• Check whether the specimen's color and texture match typical Sandstone examples.
• Photograph a fresh surface in natural light and avoid shadows, glare, or wet surfaces.
• Use hardness, streak, luster, grain size, and locality together; no single trait is enough for every specimen.

Where Sandstone is found

Sandstone is reported from multiple localities or geological settings. Exact locality should be verified from specimen provenance, maps, or field notes.

How much is Sandstone worth?

Value depends on size, condition, color, crystal quality, locality, rarity, preparation, and provenance. Treat this as educational guidance, not an appraisal.

Common uses

• Building stone
• Paving
• Decorative stone

Interesting facts

• Petra in Jordan is carved from rose-red sandstone
• Contains fossils and trace fossils of ancient life
• The Sydney Opera House is clad in Swedish granite but sits on Hawkesbury sandstone

Care & safety

Treat Sandstone as a collector specimen unless hardness, cleavage, and fracture are confirmed.

Avoid inhaling dust. Do not cut, grind, or polish unknown specimens without eye protection and a properly rated respirator.

Related rocks & minerals

Quartz Quartz Family Calcite Minerals Arkose Sedimentary Rocks Banded Iron Formation Sedimentary Rocks Breccia Sedimentary Rocks Caliche Sedimentary Rocks