Almandine on Muscovite
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Almandine on muscovite, 8.2 cm, from Bishop’s Mill quarry, Sycamore Mills, Delaware County, Pennsylvania (CM6647). William W. Jefferis specimen #3316, acquired in 1861 and displayed at the Centennial Exhibition in Philadelphia in 1876. Photo by Debra L. Wilson.
Product details
Species
SizeSmall Cabinet
Dimensions8.2 cm
Added on02/13/2026
Locality
Publications
- Mineralogical Record Mineral Collections In American Northeast page 63
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Mineral guide
Learn about Muscovite
classic white mica with perfect basal cleavage and pearly luster; elegant rosettes and sheets, with rare, high‑quality pieces for collectors.Regional guide
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