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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Riebeckite from
Dales Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia


Locality type:Gorge
Classification
Species:Riebeckite
Formula:◻Na2(Fe32+Fe23+)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Riebeckite data
Locality Data:Click here to view Dales Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:101238
Long-form Identifier:1:3:101238:5
GUID (UUID V4):0
Nearest other occurrences of Riebeckite
13.6km (8.5 miles) ⓘYampire Gorge Mine, Yampire Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia
31.0km (19.3 miles) ⓘColonial Mine, Wittenoom Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia
31.1km (19.3 miles) ⓘWittenoom Gorge Mine, Wittenoom Gorge, Wittenoom, Ashburton Shire, Western Australia, Australia
35.4km (22.0 miles) ⓘWittenoom, Ashburton Shire, Western Australia, Australia
79.5km (49.4 miles) ⓘHope Downs Mine, Weeli Wolli Creek Area, East Pilbara Shire, Western Australia, Australia
80.6km (50.1 miles) ⓘWest Angelas Mine (West Angeles Mine), Weeli Wolli Creek Area, East Pilbara Shire, Western Australia, Australia
87.3km (54.2 miles) ⓘMount Tom Price Mine, Tom Price, Ashburton Shire, Western Australia, Australia
References
Ayres, D. E. (1972) Genesis of Iron-bearing Minerals in Banded Iron Formation Mesobands in The Dales Gorge Member, Hamersley Group, Western Australia. Economic Geology, 67 (8) 1214-1233 doi:10.2113/gsecongeo.67.8.1214
Miyano, T., Miyano, S. (1982) Ferri-annite from the Dales Gorge Member iron-formations, Wittenoom area, Western Australia. American Mineralogist, 67 (11-12) 1179-1194
 
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