Sunstone
Sunstone
Sunstone is a type of feldspar that is known for its glittering appearance, which is caused by tiny metallic inclusions. It is found in many parts of the world, including Norway, Russia, India, and the United States. Sunstone is also known as "aventurine feldspar" or "heliolite".
Properties
- Chemical formula: (Ca,Na)[Al(Al,Si)Si2O8]
- Crystal system: Triclinic
- Hardness: 6-6.5
- Color: Orange, red, brown, green, yellow
- Luster: Vitreous
- Streak: White
- Cleavage: Perfect
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