Igneous
Pink Granite (Fragment)
Pink Granite (dominated by Potassium Feldspar: KAlSi3O8)
Hardness: 6-7 (Mohs). Color: Pink to reddish-orange with flecks of white. Luster: Vitreous to dull. Structure: Phaneritic (coarse-grained). Cleavage: Two directions at 90 degrees in feldspar components. Specific gravity: 2.63 - 2.75.
- Hardness
- 6-7 (Mohs)
- Color
- Pink to reddish-orange with flecks of white
- Luster
- Vitreous to dull
Identified More igneous →
Explore Pink Granite (Fragment) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Mohs). Color: Pink to reddish-orange with flecks of white. Luster: Vitreous to dull. Structure: Phaneritic (coarse-grained). Cleavage: Two directions at 90 degrees in feldspar components. Specific gravity: 2.63 - 2.75.
Formation & geological history
Formed through the slow cooling and crystallization of felsic magma deep beneath the Earth's surface (intrusive). The pink color indicates a high concentration of orthoclase feldspar. Geological ages vary widely from Archean to Cenozoic.
Uses & applications
Commonly used in construction for countertops, floor tiles, and grave markers. Small fragments are often used in crushed stone for landscaping or road base. Highly valued as architectural stone due to its durability and aesthetic appeal.
Geological facts
Granite makes up a large part of the continental crust. The pink 'variation' is primarily caused by potassium feldspar, and if the color is exceptionally red, it may be due to hematite impurities within the feldspar lattice.
Field identification & locations
Identify in the field by its speckled 'salt and pepper' appearance with distinct pinkish zones. It is harder than glass and will not react with acid. Commonly found in mountainous regions or glacial till in the Northern Hemisphere.
