| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Argentina > Microcline (Baveno Twin) |
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| DESCRIPTION: | No. 81999 |
| Mineral: | Microcline (Baveno Twin) |
| Locality: | Papachacra formation, near Corral Quemado, Belén Department, Catamarca, Argentina |
| Description: | Two large groups of intersecting parallel prismatic white microcline feldspar crystals that are twinned following the Baveno Law of Feldspar Twinning with visible twin planes running diagonally through the center and down the prism faces. |
| Overall Size: | 11x6x6 cm |
| Crystals: | 7-70 mm |
| Archived: | For reference only |
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