Microcline
| ID | 381 | |
|---|---|---|
| Mineral | Microcline | |
| Location | Unknown - Unknown - Unknown - Unknown | |
| Fluorescence | LW-UV: close SW-UV: close |
|
| Mindat.org |
View Microcline information at mindat.org |
|
Mindat data
| ID | 2704 |
|---|---|
| Long ID | 1:1:2704:1 |
| Formula |
K(AlSi3O8)
|
| IMA Status |
0 1 |
| Other Occurrences | Plutonic felsic rocks, pegmatites, high-grade metamorphic veins, hydrothermal veins |
| Industrial | Ceramics |
| Discovery Year | 1830 |
| Diapheny | Transparent,Translucent |
| Cleavage | on [001], good on [010] |
| Tenacity | brittle |
| Colour | White, grey, greyish yellow, yellowish, tan, salmon-pink, bluish green, green. |
| Hardness (min) | 6.0 |
| Hardness (max) | 6.5 |
| Luminescence | None |
| Lustre | Vitreous |
| About the name | Name given in 1830 by Johann Friedrich August Breithaupt to a reddish to brownish feldspar from Arendal, Norway, and a feldspar with bluish schiller from Stavern (formerly Fredrichsvärn), Norway, from the Greek μικρός (little) and κλινειν (to incline), in allusion to the small departure from monoclinic symmetry. |
| Streak | White |
| Crystal System | Triclinic |
| Cleavage Type | Perfect |
| Fracture type | Irregular/Uneven |
| Morphology | Prismatic crystals (to 50 m and 13,500 t), granular, massive. Commonly forms perthitic intergrowths. |
| Twinning | Carlsbad, Baveno, Manebach, polysynthetic on albite and pericline laws. |
| Comment Luster | Pearly on cleavage |
| shortcode_ima | Mcc |
Details
Price: € 0
Dimensions: Not registered
Weight: Not registered
Visibile in overview:
Notes:
| Symbol | Element | |
|---|---|---|
| Al | Aluminium | |
| K | Potassium | |
| O | Oxygen | |
| Si | Silicium |