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Almandine on Muscovite - image 1
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Almandine on Muscovite
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
Locality
Bishop’s Mill quarry, Sycamore Mills, Delaware County, Pennsylvania
Publications
  • Mineralogical Record Mineral Collections In American Northeast page 63
Added on02/13/2026
Known provenance
Unknown dateNot disclosed
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