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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Ankerite from
Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK


Locality type:Mine
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorite3
Galena3
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view Boltsburn Mine, Rookhope, Stanhope, County Durham, England, UK
Data Identifiers
Mindat Occurrence Record ID:44527
Long-form Identifier:1:3:44527:6
GUID (UUID V4):0
Nearest other occurrences of Ankerite
3.8km (2.4 miles) ⓘHeights Quarry, Westgate, Stanhope, County Durham, England, UK
4.7km (2.9 miles) ⓘSlitt Mine, Westgate, Stanhope, County Durham, England, UK
5.1km (3.1 miles) ⓘRamshaw and Jeffreys Mines, Derwent Mines, Hunstanworth, County Durham, England, UK
7.2km (4.5 miles) ⓘOld Fall Level (Snail Beds Level), Ireshopeburn, Stanhope, County Durham, England, UK
7.8km (4.8 miles) ⓘBlackdene Mine, Ireshopeburn, Stanhope, County Durham, England, UK
8.0km (5.0 miles) ⓘAllenheads Mine (Beaumont Mine), Allendale, Northumberland, England, UK
8.4km (5.2 miles) ⓘWesternhope Old Mine, Stanhope, County Durham, England, UK
8.7km (5.4 miles) ⓘWest Cross Cut Pocket Zone, Rogerley Mine, Rogerley Quarry, Stanhope, County Durham, England, UK
8.9km (5.5 miles) ⓘCarricks Mine, Ireshopeburn, Stanhope, County Durham, England, UK
10.3km (6.4 miles) ⓘSt Peter's Mine, Sparty Lea, Allendale, Northumberland, England, UK
References
Rocks & Min.: 15:57.
 
and/or  
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