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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Sphalerite from
Martin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA


04087410017369695887606.jpg
Sphalerite, etc.

Martin Marietta Quarry, Hickory, Catawba County, North Carolina, USA
04087410017369695887606.jpg
Sphalerite, etc.

Martin Marietta Quarry, Hickory, Catawba County, North Carolina, USA
04087410017369695887606.jpg
Sphalerite, etc.

Martin Marietta Quarry, Hickory, Catawba County, North Carolina, USA
Locality type:Quarry
Classification
Species:Sphalerite
Formula:ZnS
Comments:Rare as grains and crystals to 8mm in prehnite veins. Sometimes enclosed in massive prehnite.
Habit:Crude irregular crystals, also rarely as octahedrons.
Colour:brown, yellowish brown
Luminescent properties:none
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Confirmation Details:Where Tested and Reference ID: K. Wood
Associated Minerals Based on Photo Data:
Prehnite1
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Martin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:39898
Long-form Identifier:1:3:39898:7
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
30.1km (18.7 miles) ⓘNorth American Emerald Mine, Hiddenite, Alexander County, North Carolina, USA
36.5km (22.7 miles) ⓘBee Mountain Mine, Bee Mountain, Caldwell County, North Carolina, USA
46.1km (28.6 miles) ⓘCarolina Queen Mine, Burke County, North Carolina, USA
54.5km (33.9 miles) ⓘLawton Barite Property Northern workings, Lawson Barite property, Gaston County, North Carolina, USA
55.1km (34.3 miles) ⓘLawton Barite property Mid-Southern workings, Lawson Barite property, Gaston County, North Carolina, USA
55.4km (34.4 miles) ⓘLawton Barite Property Southern workings, Lawson Barite property, Gaston County, North Carolina, USA
56.0km (34.8 miles) ⓘCraig Barite Property Northern Workings, Gaston County, North Carolina, USA
56.1km (34.9 miles) ⓘCraig Barite Property Southern Workings, Gaston County, North Carolina, USA
56.5km (35.1 miles) ⓘFoote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
60.5km (37.6 miles) ⓘCapps Hill Mine, Charlotte, Mecklenburg County, North Carolina, USA
References
K. Wood collection
 
and/or  
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