Rock Identifier
Granite (Granite (composed of Quartz, Felspar, and Mica)) — igneous
igneous

Granite

Granite (composed of Quartz, Felspar, and Mica)

Phaneritic (coarse-grained) texture; Mohs hardness 6-7; Pink/white/gray color; Vitreous luster on crystal faces; Granular structure; Specific gravity 2.63-2.75.

Identified More igneous
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Physical properties

Phaneritic (coarse-grained) texture; Mohs hardness 6-7; Pink/white/gray color; Vitreous luster on crystal faces; Granular structure; Specific gravity 2.63-2.75.

Formation & geological history

Formed by the slow crystallization of magma below Earth's surface (intrusive). This specimen shows rounding likely from alluvial/water erosion. Massive deposits found in continental crust across all geological eras.

Uses & applications

Extensively used in construction for countertops, floor tiles, paving stones, and monuments. Also used as crushed stone in roadbeds and as a collector's specimen for demonstrating igneous textures.

Geological facts

Granite is the most common rock found in the Earth's continental crust. It is incredibly durable; many of the world's oldest surviving monuments are carved from it.

Field identification & locations

Identify by its salt-and-pepper appearance and visible individual crystals of pink/white feldspar and translucent quartz. Frequently found in riverbeds, glacial tills, and mountain ranges.