Properties
| Category | Tectosilicate minerals |
|---|---|
| Formula | (Ca,Na)((Al,Si)2Si2O8) |
| Crystal system | Triclinic |
| Color | Colorless, orange, yellow, red, green, blue, brown, and copper shiller |
| Crystal habit | Euhedral crystals, granular |
| Cleavage | 001 |
| Mohs scale hardness | 6.0–6.5 |
| Diaphaneity | Transparent to translucent and opaque |
| Specific gravity | 2.64–2.66 |
From the Wikipedia article
Sunstone is a microcline or oligoclase feldspar, which when viewed from certain directions exhibits a spangled appearance. It has been found in Southern Norway, Sweden, various localities in the United States, and on some beaches along the midcoast of South Australia.
Source
Source record: crystal-compendium/sunstone/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.
https://en.wikipedia.org/wiki/Sunstone — revision id 1368538928. Text and properties from Wikipedia, licensed CC BY-SA 4.0.