Oligoclase

Oligoclase is a plagioclase feldspar mineral that has a composition between albite and anorthite, generally containing more sodium than calcium. It forms in a variety of colors and is known for its distinct luster and transparency.

Oligoclase
Category: Feldspar
Hardness: 6
Specific Gravity: 2.65
Luster: Vitreous to pearly
Transparency: Transparent to translucent
Crystal System: Triclinic
Cleavage: Perfect on {001}
Fracture: Conchoidal
Composition: (Na,Ca)(Al,Si)4O8
Typical Size: Crystals up to 15 cm in length have been found, but smaller specimens are more common.
Found In:
BR Brazil US United States DE Germany CN China
Uses:
  • Jewelry
  • Lapidary
  • Decoration
  • Collection
Oligoclase is believed to enhance creativity and provide a sense of well-being and harmony. It is often used in meditation and spiritual practices.