igneous
Granite
Felsic intrusive igneous rock
Hardness: 6-7 on Mohs scale; Color: Varies from pink to gray depending on feldspar content; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained texture with visible crystals); Specific Gravity: 2.65-2.75
- Hardness
- 6-7 on Mohs scale
- Color
- Varies from pink to gray depending on feldspar content
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Varies from pink to gray depending on feldspar content; Luster: Dull to vitreous; Crystal structure: Phaneritic (coarse-grained texture with visible crystals); Specific Gravity: 2.65-2.75
Formation & geological history
Formed from the slow cooling and crystallization of magma rich in silica and alkali metal oxides beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction for dimensional stone, countertops, floor tiles, paving, and monuments due to its durability and aesthetic appeal.
Geological facts
Granite is the most common intrusive rock of Earth's continental crust. It forms the core of many major mountain ranges.
Field identification & locations
Easily identified by its speckled, coarse-grained appearance containing quartz, feldspar, and mica. Commonly found in continental shields and mountain roots worldwide.
