igneous
Granite
Intrusive Igneous Rock
Hardness: 6-7 on Mohs scale. Color: Salt and pepper appearance with white, gray, pink, and black grains. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible crystals). Specific gravity: 2.65 - 2.75.
- Hardness
- 6-7 on Mohs scale
- Luster
- Vitreous to dull
Identified More igneous →
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Physical properties
Hardness: 6-7 on Mohs scale. Color: Salt and pepper appearance with white, gray, pink, and black grains. Luster: Vitreous to dull. Crystal structure: Phaneritic (coarse-grained, visible crystals). Specific gravity: 2.65 - 2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma rich in silica and alkali aluminum silicates deep beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction for building facades, paving stones, monuments, countertops, and interior tiles.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its distinct interlocked mineral crystals of quartz, feldspar, and mica. Found globally in continental shields and mountain ranges.
