Rock Identifier
Weathered Granite (Granite (Felsic intrusive igneous rock)) — igneous
igneous

Weathered Granite

Granite (Felsic intrusive igneous rock)

AI-generated identification · may be incorrect

Hardness of 6-7 on the Mohs scale, golden-brown to yellow-orange coloration due to iron oxide staining, dull to sub-vitreous luster, and phaneritic (coarse-grained) crystal structure.

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Physical properties

Hardness of 6-7 on the Mohs scale, golden-brown to yellow-orange coloration due to iron oxide staining, dull to sub-vitreous luster, and phaneritic (coarse-grained) crystal structure.

Formation & geological history

Formed from the slow cooling of magma rich in silica and potassium deep beneath the Earth's surface, often dating back hundreds of millions of years.

Uses & applications

Commonly used in construction, monument building, landscaping, and aggregate materials due to its exceptional durability.

Geological facts

The distinct yellowish-brown surface crust is caused by the chemical weathering and oxidation of iron-bearing minerals within the rock over time.

Field identification & locations

Identify by its visible interlocking crystals of quartz, feldspar, and mica, heavily stained with iron oxides. Found globally in continental shields and mountain roots.