Microcline is a common rock forming mineral that forms deep below ground. Microcline is often found in the igneous rocks granite and syenite. The less common green microcline is known as amazonite. Like many feldspars, microcline is commonly twinned, usually as carlsbad, albite or pericline twinning.
| KAlSi3O8 |
|
| Tectosilicate |
|
| Triclinic |
|
| -1 |
|
| 6 |
|
| 2.54-2.57 |
|
| {001} perfect, {010} good |
|
| Uneven |
|
| White, yellow, green, red/brown |
|
| White |
|
| Vitreous |
|
| Transparent/translucent |
|
| Blocky, prismatic |
|
| Commonly twinned |
|
| Notable Localities: |
Ural Mountains; Norway and Pikes Peak, Colorado |
| Uses: |
Manufacture of porcelain, ornamental material |
Specimens:
|
|