Igneous
Granite
Granite (High-silica plutonic rock)
Hardness: 6-7 on Mohs scale; Color: Phaneritic texture with visible grains of white/grey feldspar, translucent quartz, and dark biotite or hornblende; Luster: Vitreous to dull; Crystal structure: Granular/Crystalline.
- 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: Phaneritic texture with visible grains of white/grey feldspar, translucent quartz, and dark biotite or hornblende; Luster: Vitreous to dull; Crystal structure: Granular/Crystalline.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface (intrusive). This specific countertop specimen is a commercial 'White Granite' likely containing garnets (the purple spots).
Uses & applications
Predominantly used in construction, architectural facades, and interior design for countertops and flooring due to its durability and aesthetic appeal.
Geological facts
Granite makes up a large portion of the Earth's continental crust. The purple spots visible in this specific slab are likely almandine garnets, which are common accessory minerals in certain granitic rocks.
Field identification & locations
Identify in the field by its coarse-grained (phaneritic) texture where individual mineral crystals are visible to the naked eye. Commonly found in continental mountain ranges and batholiths.
