AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from California > Microcline (Baveno-Law Twinned) |
DESCRIPTION: | No. 50072 |
Mineral: | Microcline (Baveno-Law Twinned) |
Locality: | Little Three Mine, Ramona District, San Diego County, California |
Description: | Large white microcline crystal twinned diagonally through the middle following the Baveno Law of feldspar twinning. The twin plane is visible in the prism and termination faces crisscrossing in alternating dominance. Ex. John Geiges collection #840 |
Overall Size: | 7.5x3.5x3.5 cm |
Crystals: | 75 mm |
Archived: | For reference only |
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