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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Huntite from
Corporation quarries, Clifton Hill, Collingwood, City of Yarra, Victoria, Australia


Locality type:Quarry
Classification
Species:Huntite
Formula:CaMg3(CO3)4
Comments:"White nodules of huntite from Clifton Hill quarries have been identified by X-ray diffraction of old specimens of 'hydrous dolomite'. "
The original report of this materials is as follows.
"Occasionally, large and small cavities, as well as horizontal planes and joints, contain a soft white substance, of a consistence varying, when freshly exposed, from a near milky state, to that of a soft putty, of which an analysis proved it to be a hydrous dolomite. These soft masses seem gradually to part with their water, and become converted into a variety of dolomite, sometimes soft and earthy, resembling chalk; and at other times extremely hard and semi-opaline in appearance."
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Huntite data
Locality Data:Click here to view Corporation quarries, Clifton Hill, Collingwood, City of Yarra, Victoria, Australia
Data Identifiers
Mindat Occurrence Record ID:89424
Long-form Identifier:1:3:89424:1
GUID (UUID V4):0
Nearest other occurrences of Huntite
24.9km (15.5 miles) Deer Park Quarry (Boral Deer Park Quarry), City of Melton, Victoria, Australia
52.8km (32.8 miles) Rosslynne Reservoir, Gisborne, Macedon Ranges Shire, Victoria, Australia
References
 
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