| Id | 55 |
| Identification Type | Mineral |
| Name | Microcline |
| Distinguishing Features | tartan-twinned
low-birefringence |
| Description | Transparent colorless. Nonpleochroic. Low order birefringence colors. Distinctive twinning pattern from the intersection of pericline and albitic twins ("tartan plaid" or "cross-hatched") in cross-polarized light is virtually diagnostic of microcline. Tabular and cleavage fragments. Moderate relief.
See also feldspar. |
| Tags | silicate plaid tartan cross-hatch twinned feldspar cleavage transparent colorless |
| External Resources | Microcline on MinDat |
| Imposters | |
| Images |
116 Church Street NE, Minneapolis, MN 55455
P: 612-626-7889
