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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Brookite from
Wheal Penrose, Porthleven, Cornwall, England, UK


00640780017272728255523.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
03972970017271979103375.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
08583490017271979141878.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
00640780017272728255523.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
09154020017271998718557.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
09491100017271998725805.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
00640780017272728255523.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
03972970017271979103375.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
08583490017271979141878.jpg
Brookite

Wheal Penrose, Porthleven, Cornwall, England, UK
Locality type:Mine
Classification
Species:Brookite
Formula:TiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Brookite data
Locality Data:Click here to view Wheal Penrose, Porthleven, Cornwall, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:642452
Long-form Identifier:1:3:642452:7
GUID (UUID V4):0
Nearest other occurrences of Brookite
13.5km (8.4 miles) ⓘSouth Tolcarne Mine, Beacon, Camborne, Cornwall, England, UK
20.8km (12.9 miles) ⓘPoldice Mine, St Day United Mines (Poldice Mines), Gwennap, Cornwall, England, UK
74.5km (46.3 miles) ⓘLanterdan Quarry, Treknow, Tintagel, Cornwall, England, UK
74.9km (46.6 miles) ⓘPrince of Wales Quarry (North Delabole Quarry), Tintagel, Cornwall, England, UK
76.8km (47.7 miles) ⓘCraddock Moor Mine, Craddock Moor, St Cleer, Cornwall, England, UK
78.1km (48.5 miles) ⓘCheesewring Quarry, Minions, Linkinhorne, Cornwall, England, UK
90.3km (56.1 miles) ⓘHingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK
91.0km (56.5 miles) ⓘDrakewalls Mine, Drakewalls, Calstock, Cornwall, England, UK
94.8km (58.9 miles) ⓘVirtuous Lady Mine, Buckland Monachorum, West Devon, Devon, England, UK
References
G.Curtis collection.
 
and/or  
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