Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Limonite from
Brogden Iron Mine (Inow Mine; Constantine Mine), Constantine, Cornwall, England, UK


Locality type:Mine
Classification
Species:'Limonite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Limonite data
Locality Data:Click here to view Brogden Iron Mine (Inow Mine; Constantine Mine), Constantine, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:548346
Long-form Identifier:1:3:548346:4
GUID (UUID V4):0
Nearest other occurrences of Limonite
7.0km (4.3 miles) ⓘPorthallow (Porthalla), St Keverne, Cornwall, England, UK
7.1km (4.4 miles) ⓘWheal Ann, Boderwennack, Wendron, Cornwall, England, UK
7.3km (4.5 miles) ⓘBassett & Grylls Mine (Porkellis Mine; Porkellis Tin Mines; Wheal Jantar; Balwath Mine), Porkellis, Wendron, Cornwall, England, UK
7.5km (4.6 miles) ⓘWheal Trumpet (Trumpet Consols), Boderwennack, Wendron, Cornwall, England, UK
11.3km (7.0 miles) ⓘWheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK
11.5km (7.2 miles) ⓘWheal Penrose, Porthleven, Cornwall, England, UK
11.9km (7.4 miles) ⓘBuller and Basset United Mine, Four Lanes, Carn Brea, Cornwall, England, UK
12.7km (7.9 miles) ⓘWheal Buller, Wheal Buller and Beauchamp, Redruth, Cornwall, England, UK
13.0km (8.1 miles) ⓘTing Tang Mine, Carharrack, Cornwall, England, UK
13.5km (8.4 miles) ⓘSouth Condurrow Mine (Marshall's Shaft), Grenville United Mines, Troon, Camborne, Cornwall, England, UK
References
Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro.
 
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