igneous
Pink Granite
Granite (Phaneritic igneous rock rich in Alkali Feldspar and Quartz)
Hardness: 6-7 on Mohs scale; Color: Pink, reddish-orange, with grey and black specks; Luster: Dull to vitreous; Crystal Structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75
- Hardness
- 6-7 on Mohs scale
- Color
- Pink, reddish-orange, with grey and black specks
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Pink, reddish-orange, with grey and black specks; Luster: Dull to vitreous; Crystal Structure: Phaneritic (coarse-grained); Specific Gravity: 2.63 to 2.75
Formation & geological history
Formed by the slow crystallization of silica-rich magma beneath the Earth's surface. This specimen appears to be water-worn, likely from a river or glacial deposit.
Uses & applications
Construction, countertops, monuments, paving stones, and landscaping. Polished varieties are highly valued for architectural facades.
Geological facts
Granite makes up a large portion of the Earth's continental crust. The pink color is specifically due to a high concentration of potassium feldspar (orthoclase).
Field identification & locations
Identify by its interlocking crystalline texture and pink/salmon color. It is commonly found in mountainous regions or glacial till. Collectors look for unique large crystal patterns or mineral inclusions.
