igneous
Granite (likely Kashmir/ivory-type granite)
Granite; chiefly quartz (SiO₂), feldspar, and mica/amphibole
AI-generated identification · may be incorrectCoarse-grained, speckled cream-to-beige stone with translucent quartz, pale feldspar, and dark mica; vitreous quartz and pearly feldspar luster, Mohs hardness about 6–7, interlocking crystalline texture, with no consistent cleavage in the whole rock.
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Physical properties
Coarse-grained, speckled cream-to-beige stone with translucent quartz, pale feldspar, and dark mica; vitreous quartz and pearly feldspar luster, Mohs hardness about 6–7, interlocking crystalline texture, with no consistent cleavage in the whole rock.
Formation & geological history
A felsic intrusive igneous rock formed by slow cooling of silica-rich magma deep in the continental crust, generally over hundreds of millions to billions of years; the image appears to show a polished slab or countertop.
Uses & applications
Widely used for countertops, flooring, wall cladding, monuments, memorials, and architectural stone; polished slabs are valued mainly by pattern, durability, size, and provenance.
Geological facts
Granite’s visible grains record slow underground cooling; its natural variation comes from changing proportions of feldspar, quartz, mica, and accessory minerals.
Field identification & locations
Identify it by its randomly interlocking visible grains, light feldspar-rich background, gray/clear quartz, and scattered dark mica; common sources include India, Brazil, China, and Scandinavia. Acid testing should not noticeably fizz, unlike calcite-rich marble.
