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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Prehnite from
Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK


06418470017272018937887.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
08862580017272019127235.jpg
Prehnite

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
07972630017272019119237.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
08281740017272018942094.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
09370940017362551516632.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
08862580017272019127235.jpg
Prehnite

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
07972630017272019119237.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
01704760017362551527758.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
06418470017272018937887.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
08862580017272019127235.jpg
Prehnite

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
07972630017272019119237.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
08281740017272018942094.jpg
Prehnite, etc.

Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
Locality type:Quarry
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite7
Apophyllite Group3
Chabazite2
Basalt2
Analcime2
Chrysocolla1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Boyleston Quarry, Barrhead, East Renfrewshire, Scotland, UK
Photo GalleryView Gallery (21 photos)
Data Identifiers
Mindat Occurrence Record ID:17176
Long-form Identifier:1:3:17176:0
GUID (UUID V4):0
Nearest other occurrences of Prehnite
7.4km (4.6 miles) ⓘHartfield Moss, Renfrewshire, Scotland, UK
13.2km (8.2 miles) ⓘLoanhead Quarry, Beith, North Ayrshire, Scotland, UK
13.5km (8.4 miles) ⓘOld Kilpatrick, West Dunbartonshire, Scotland, UK
13.7km (8.5 miles) ⓘBishopton tunnel, Bishopton, Renfrewshire, Scotland, UK
14.3km (8.9 miles) ⓘBorrow Pit, Bishopton, Renfrewshire, Scotland, UK
21.2km (13.2 miles) ⓘCastle Hill, Kilbirnie, North Ayrshire, Scotland, UK
25.3km (15.7 miles) ⓘCampsie Fells, Stirling, Scotland, UK
72.1km (44.8 miles) ⓘByne Hill, Girvan, South Ayrshire, Scotland, UK
72.4km (45.0 miles) ⓘCorstorphine Hill, City of Edinburgh, Scotland, UK
77.0km (47.8 miles) ⓘCastle Rock, City of Edinburgh, Scotland, UK
References
M' Phail, H. (1869) On the Carboniferous sections of the Levern Valley, Renfrewshire. Transactions of the Geological Society of Glasgow: 3: 254-271.
Heddle, M.F. (1901) The Mineralogy of Scotland, Volumes I and II. D. Douglas, Edinburgh.
Houston, R.S. (1912) Notes on the Mineralogy of Renfrewshire. Transactions of the Paisley Naturalists' Society: 1: 1-87.
Allan, W.C. (1973) Excursion 3: Rocks and minerals of Boyleston Quarry, Barrhead. In: Bluck, B. J. (ed.) Geology of the Glasgow District. Geological Society of Glasgow.
Meikle, T. K. (1989) The secondary mineralogy of the Clyde Plateau Lavas, Scotland. Part 1: Boyleston Quarry. Journal of the Russell Society, 2 (2) 11-14
 
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