igneous
Granite
Granite
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale. Color: red, orange, grey, black speckles. Luster: dull to shiny when wet or polished. Crystal structure: coarse-grained.
- Hardness
- 6-7 on Mohs scale
- Color
- red, orange, grey, black speckles
- Luster
- dull to shiny when wet or polished
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Physical properties
Hardness: 6-7 on Mohs scale. Color: red, orange, grey, black speckles. Luster: dull to shiny when wet or polished. Crystal structure: coarse-grained.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface. Composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals.
Uses & applications
Used in construction, monuments, paving, and as decorative stone.
Geological facts
Granite is the most common intrusive igneous rock in Earth's continental crust.
Field identification & locations
Identified by its visible crystalline structure and mineral composition (quartz, feldspar, mica). Commonly found in continental crust areas.
