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Feldspar Group from Pennsylvania, USA

01108290014948535451893.jpg
Sunstone

Mineral Hill, Elwyn, Middletown Township, Delaware County, Pennsylvania, USA
02655910017057741385003.jpg
Feldspar Group, etc.

Smedley Park beryl locality, Springfield Township, Delaware County, Pennsylvania, USA
01108290014948535451893.jpg
Sunstone

Mineral Hill, Elwyn, Middletown Township, Delaware County, Pennsylvania, USA
04652180017055443899766.jpg
Feldspar Group, etc.

Smedley Park beryl locality, Springfield Township, Delaware County, Pennsylvania, USA
01108290014948535451893.jpg
Sunstone

Mineral Hill, Elwyn, Middletown Township, Delaware County, Pennsylvania, USA
00406030017057033852563.jpg
Feldspar Group, etc.

Smedley Park beryl locality, Springfield Township, Delaware County, Pennsylvania, USA
USA
 
[var. Sunstone] Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York.
    • Adams County
      • Hamilton Township
        • East Berlin
(prospector field notes)
    • Berks County
      • Rittenhouse Gap
David S. Bernstein- January 2010
    • Bucks County
      • Lower Southampton Township
Gordon, Samuel G. (1922), Mineralogy of PA
    • Chester County
      • Pennsbury Township
[var. Sunstone] Kunz, 1892. Gems & Precious Stones of N. America, p. 163.
      • Warwick Township
        • Warwick (Saint Marys)
          • Hopewell Mines
Piatak, N. M., & Seal II, R. R. (2012). Mineralogy and environmental geochemistry of historical iron slag, Hopewell Furnace National Historic Site, Pennsylvania, USA. Applied geochemistry, 27(3), 623-643.
Ransom, Jay Ellis (1974) Gems and Minerals of America - A Guide to Rock Collecting. Harper & Row.
      • Middletown Township
        • Elwyn
[var. Sunstone] Joe Dunleavy (Pers. Comm.)
[var. Sunstone] Gordon's Mineralogy of Pennsylvania (1922) p. 191
[var. Sunstone] Gordon, S.G. (1922) The Mineralogy of Pennsylvania. Special Publication No.1, The Academy of Natural Sciences of Philadelphia, 255 pages, at p.191.
      • Springfield Township
Sloan, 1975. Minerals & Gem Trails of NY, NJ, PA, CT (4th ed.)
    • Philadelphia County
      • Philadelphia
        • Germantown
Samuel G. Gordon (1922) "Mineralogy of Pennsylvania" p. 24
 
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