Properties
| Category | Tectosilicate minerals |
|---|---|
| Formula | KAlSi3O8 |
| Crystal system | Triclinic |
| Color | Green, blue-green |
| Crystal habit | Prismatic |
| Cleavage | Perfect |
| Fracture | Uneven, splintery |
| Tenacity | Brittle |
| Mohs scale hardness | 6.0–6.5 |
| Luster | Vitreous |
| Streak | White |
| Diaphaneity | Translucent, opaque |
| Specific gravity | 2.56–2.58 |
From the Wikipedia article
Amazonite, also known as amazonstone, is a green tectosilicate mineral, a variety of the potassium feldspar called microcline. Its chemical formula is KAlSi3O8, which is polymorphic to orthoclase.
Source
Source record: crystal-compendium/amazonite/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.
https://en.wikipedia.org/wiki/Amazonite — revision id 1375403544. Text and properties from Wikipedia, licensed CC BY-SA 4.0.