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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Fayalite-Forsterite Series from
'S Airde Beinn, Isle of Mull, Argyll and Bute, Scotland, UK


Classification
Species:'Fayalite-Forsterite Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fayalite-Forsterite Series data
Locality Data:Click here to view 'S Airde Beinn, Isle of Mull, Argyll and Bute, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:605609
Long-form Identifier:1:3:605609:4
GUID (UUID V4):0
Nearest other occurrences of Fayalite-Forsterite Series
20.0km (12.4 miles) ⓘGribun dike, Isle of Mull, Argyll and Bute, Scotland, UK
25.8km (16.0 miles) ⓘCamas Mor Intrusion, Isle of Muck, Caol and Mallaig, Highland, Scotland, UK
45.6km (28.3 miles) ⓘRum Central Complex, Rùm, Caol and Mallaig, Highland, Scotland, UK
58.9km (36.6 miles) ⓘReasagbuie dike, Colonsay dikes, Isle of Colonsay, Argyll and Bute, Scotland, UK
59.1km (36.7 miles) ⓘAllt Guibhsachain, Ballachulish, Fort William and Ardnamurchan, Highland, Scotland, UK
66.3km (41.2 miles) ⓘBeinn an Dubhaich, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK
71.1km (44.2 miles) ⓘMarsco, Sligachan, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK
77.5km (48.2 miles) ⓘMaol na Gainmhich granite, Isle of Skye, Eilean á Chèo, Highland, Scotland, UK
83.6km (51.9 miles) ⓘÓsgaig Sill, Isle of Raasay, Eilean á Chèo, Highland, Scotland, UK
References
Cann, J. R. (1965) The metamorphism of amygdales at 'S Airde Beinn, northern Mull. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 92-106 doi:10.1180/minmag.1965.034.268.08
Emeleus, C. H., Gyopari, M. C. (1992) Chapter 5: Isle of Mull. In British Tertiary Volcanic Province - Geological Conservation Review No. 4. Joint Nature Conservation Committee, Peterborough. p.143-184.
 
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