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Collected by the owner of the quarry in the 90's. Possible Marcasite and Pyrite.

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Original EntryCollected by the owner of the quarry in the 90's. Possible Marcasite and Pyrite.
Mindat Ref. ID16051508Long-form Identifiermindat:1:5:16051508:0
GUID0
Full ReferenceCollected by the owner of the quarry in the 90's. Possible Marcasite and Pyrite.
Plain TextCollected by the owner of the quarry in the 90's. Possible Marcasite and Pyrite.

Map of Localities

Mineral Occurrences

LocalityMineral(s)
Penedo do Lagarto quarry, Almargem do Bispo，Pêro Pinheiro e Montelavar, Sintra, Lisbon, Portugalⓘ Marcasite

See Also

These are possibly similar items as determined by title/reference text matching only.

Visual ID of material field collected by the claim owner.
Parr, D.F., and Chang, L. L. Y. (1977) Descriptive mineralogy of Pugh quarry, northwestern Ohio: Marcasite and pyrite. The Ohio Journal of Science: 77(5): 213-222.
Observed/collected August 2011 and in the early 1970s by David S. Bernstein when the Quarry was in operation.
John S Sobolewski collection, collected by and identified by claim owner Ray DeMark, and confirmed by me.
Collected by claim owner Joe George 2003.
Joseph Vasichko (Collected by him at the quarry)
Visual ID of material field collected by claim owner.
Plummer, George William (1910) The Constitution of Marcasite and Pyrite, University of Pennsylvania.
Bannister, F.A. (1932) The distinction of pyrite from marcasite in nodular growths. Mineralogical Magazine: 23(138): 179-187 [lists "pyrite disks in shale" from the locality].
Gunter, Richard (2018) Calcite-Baryte-Marcasite, Steeprock Quarry, Manitoba . https://www.mindat.org/article.php/2738/Calcite-Baryte-Marcasite%2C+Steeprock+Quarry%2C+Manitoba+
From specimens collected in the quarry-Rock Currier
 
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