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Penhale Moor Mine (Penhale and Barton Mine), Fraddon, St Enoder, St Austell District, Cornwall, England, UK

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List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
A_mB_nX_p, with (m+n):p = 1:2
Arsenopyrite	2.12.4.1	FeAsS
Pyrite	2.12.1.1	FeS₂
Group 4 - SIMPLE OXIDES
AX₂
Cassiterite	4.4.1.5	SnO₂
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO₂ with [4] coordinated Si
Quartz	75.1.3.1	SiO₂
Unclassified Minerals
'Tourmaline'	-	A(D₃)G₆(T₆O₁₈)(BO₃)₃X₃Z

5 entries listed. 4 valid minerals.

References

Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, p. 527.

A.K. Hamilton Jenkin: Annotations to Ordnance Survey map, Sheet 40SE.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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