| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from England > Fluorapatite and Muscovite on Carlsbad Law-twinned Orthoclase |
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| DESCRIPTION: | No. 76721 |
| Mineral: | Fluorapatite and Muscovite on Carlsbad Law-twinned Orthoclase |
| Locality: | Cornwall, England |
| Description: | Lustrous translucent green fluorapatite crystals to 14 mm and bladed brown muscovite mica crystals to 1 mm on blocky orthoclase crystals to 20 mm twinned following the Carlsbad Law of feldspar twinning. Locale was given as St. Day, but that is doubtful. Collected ca. 1970 |
| Overall Size: | 4x2.5x2.5 cm |
| Crystals: | 1-20 mm |
| Archived: | For reference only |
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