Orthoclase is the transparent to opaque form of yellow potassium feldspar. This mineral is sometimes mistaken for citrine or yellow beryl and is primarily found in Madagascar.

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The name orthoclase comes from the Greek for "break straight " because this variety of feldspar is frequently found with crystals joined at a 90 degree angle.

Feldspars are one of the most widespread minerals in the world making up nearly 60 percent of the Earth's crust. Other members of the feldspar family of minerals include moonstone sunstone amazonite and labradorite.

Orthoclase is often colorless or champagne-colored. Champagne-colored orthoclase is frequently used in jewelry and looks best in natural daylight. Its luster is vitreous or pearly and orthoclase gemstones that exhibit opalescence are generally referred to as moonstone.

Its ranking of 6 on the Mohs hardness scale makes orthoclase suitable for jewelry in the shape of pendants earrings and pins as well as gem collections.



• Orthoclase is associated with hope new beginnings perception and discernment.

• Known as a stone of cooperative effort orthoclase encourages collaboration and insight into group activities. It is also believed to bring balance to activities and systems.

• In chakra healing practices orthoclase is used to balance emotional strength and enhance willpower.

• Crystal healers use orthoclase to balance the body's systems like blood pressure hormones and metabolism.

Disclaimer: Use of any stone or mineral is not a substitute for professional medical care or treatment, and nothing herein constitutes medical advice, diagnosis, or treatment. Information provided should not be used to treat any illness, injury, medical condition, or ailment without prior consultation with a qualified health professional.



Location: Madagascar

Orthoclase can be found in many composite minerals like granite but these deposits are not considered gem quality. Australia Madagascar Sri Lanka the United States and Zimbabwe have mining operations for gem-quality orthoclase. However the best quality deposits are found in Madagascar where Shop LC sources orthoclase.



  • Ranks 6 on the Mohs hardness scale.
  • Color ranges from a soft yellow or champagne to colorless.
  • Sourced from Madagascar.
  • Member of the feldspar family.
  • Also known as alkali feldspar potassium feldspar and K-feldspar.
  • 100 percent natural stone; no additional treatments.