igneous
Granite
Intrusive Igneous Rock
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale. Color: Varies widely (white, pink, gray, black) due to feldspar and quartz content. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible mineral crystals). Specific gravity: 2.65-2.75.
- Hardness
- 6-7 on Mohs scale
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Varies widely (white, pink, gray, black) due to feldspar and quartz content. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible mineral crystals). Specific gravity: 2.65-2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma deep beneath the Earth's continental crust, typically ranging from Precambrian to Cenozoic eras.
Uses & applications
Widely used in construction, architectural buildings, monuments, countertops, paving stones, and interior design.
Geological facts
Granite is the most common rock of the Earth's continental crust and is frequently found in major mountain ranges. Its name is derived from the Latin granum, a grain, referring to the coarse-grained structure of such a crystalline rock.
Field identification & locations
Easily identified by its speckled appearance with visible interlocking crystals of quartz, feldspar, and mica. Found globally in shields and orogenic belts.
