Orthoclase

Orthoclase is a mineral with the formula KAlSi3O8, which belongs to the feldspar group. It is a common mineral in the Earth's crust and is often found in granites and other igneous rocks. Orthoclase can occur in various colors, including shades of white, pink, and more vivid colors, depending on the presence of impurities.

Orthoclase
Category: Feldspar
Hardness: 6
Specific Gravity: 2.56
Luster: Vitreous to pearly
Transparency: Transparent to translucent
Crystal System: Monoclinic
Cleavage: Two directions of perfect cleavage at 90 degrees.
Fracture: Conchoidal to uneven.
Composition: KAlSi3O8 (potassium aluminum silicate)
Typical Size: Commonly found in large crystals of up to several centimeters in diameter.
Found In:
BR Brazil US United States AU Australia CA Canada DE Germany
Uses:
  • Jewelry making
  • Sculpture
  • Ceramics
  • Glass production
  • Industrial uses
Orthoclase is believed to help with clarity of thought, decision-making, and enhancing communication. It is a stone of confidence and can encourage a positive attitude and ease stress.