| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Microcline with Muscovite |
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| DESCRIPTION: | No. 27951 |
| Mineral: | Microcline with Muscovite |
| Locality: | Jerry O'Neil's (Quarry), Tacony Creek, Philadelphia, Pennsylvania |
| Description: | Part of a pocket wall with many small freestanding microcline crystals up to 5 mm with dark muscovite mica crystals up to 4 mm. A rare specimen from within the Philadelphia city limits. Ex. A. Lincoln Sherk II, MD. (1896-1970); collected March 21, 1015 |
| Overall Size: | 4.5x3x2.5 cm |
| Crystals: | 1-5 mm |
| Archived: | For reference only |
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