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
Pinnacles Mine, 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 Pinnacles Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:929059
Long-form Identifier:1:3:929059:4
GUID (UUID V4):0
Nearest other occurrences of Actinolite
0.4km (0.3 miles) ⓘYudnamutana Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
0.7km (0.5 miles) ⓘBlack Queen Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
1.1km (0.7 miles) ⓘWheal Austin, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
3.3km (2.0 miles) ⓘBlue Mine, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
3.7km (2.3 miles) ⓘBlue Mine Creek, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
5.7km (3.5 miles) ⓘWheal Turner, Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
7.9km (4.9 miles) ⓘCommonwealth Mine, Mount Painter area, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
8.2km (5.1 miles) ⓘGrand Junction Mine (Junction Mine; Yudnamutana No.7), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
8.4km (5.2 miles) ⓘMount McDonnell Mine (MacDonnell; Mount McDonald; Mt McDonald; Prince Albert), Yudnamutana District, Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station), Pastoral Unincorporated Area, South Australia, Australia
9.6km (6.0 miles) ⓘShamrock Mine (Shamrock Valley; Valley), 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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