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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Schulenbergite from
Penberthy Croft Mine, St Hilary, Cornwall, England, UK


06839780017272006842096.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09695090017272006882933.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
06839780017272006842096.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09695090017272006882933.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
06839780017272006842096.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
09695090017272006882933.jpg
Schulenbergite, etc.

Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Locality type:Mine
Classification
Species:Schulenbergite
Formula:(Cu,Zn)7(SO4)2(OH)10 · 3H2O
Habit:Botryoidal
Colour:Light turquoise- greenish blue
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Confirmation Details:Where Tested and Reference ID: NHM London XRD
Associated Minerals Based on Photo Data:
Linarite1
Connellite1
Langite1
Data
Mineral Data:Click here to view Schulenbergite data
Locality Data:Click here to view Penberthy Croft Mine, St Hilary, Cornwall, England, UK
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:20237
Long-form Identifier:1:3:20237:0
GUID (UUID V4):0
Nearest other occurrences of Schulenbergite
20.4km (12.7 miles) ⓘWheal Jewel, Gwennap, Cornwall, England, UK
92.4km (57.4 miles) ⓘPrince of Wales Mine (Wheal Pleasant), Harrowbarrow & Prince of Wales Mines (Calstock United Tin and Copper Mines), Calstock, Cornwall, England, UK
References
Betterton, J. (2000) Famous Mineral Localities: Penberthy Croft Mine, St. Hilary, Cornwall, England. UK Journal of Mines and Minerals 20, Rockbottom Publications. 7-37
 
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