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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Actinolite from
Mount McDonnell Mine (MacDonnell; Mount McDonald; Mt McDonald; Prince Albert), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia


Locality type:Mine
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Mount McDonnell Mine (MacDonnell; Mount McDonald; Mt McDonald; Prince Albert), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:929022
Long-form Identifier:1:3:929022:8
GUID (UUID V4):0
Nearest other occurrences of Actinolite
0.6km (0.4 miles) ⓘGrand Junction Mine (Junction Mine; Yudnamutana No.7), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
1.5km (0.9 miles) ⓘShamrock Mine (Shamrock Valley; Valley), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
2.9km (1.8 miles) ⓘCommonwealth Mine, Mount Painter area, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
7.7km (4.8 miles) ⓘBlack Queen Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
8.1km (5.0 miles) ⓘYudnamutana Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
8.4km (5.2 miles) ⓘPinnacles Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
9.4km (5.8 miles) ⓘWheal Austin, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
10.0km (6.2 miles) ⓘRadium Creek (Median Section), Mount Painter area, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
11.4km (7.1 miles) ⓘBlue Mine Creek, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
11.7km (7.3 miles) ⓘBlue Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
References
Coats, R.P.; Blissett, A.H. (1971) Bulletin 43 - Regional and economic geology of the Mount Painter province. Department of Mines, Geological Survey of South Australia. 426 pp.
 
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