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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Holmquistite from
Martin Marietta Lithium Quarry (Martin Marietta Quarry), Kings Mountain, Cleveland County, North Carolina, USA


Locality type:Quarry
Classification
Species:Holmquistite
Formula:◻Li2(Mg3Al2)(Si8O22)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Holmquistite data
Locality Data:Click here to view Martin Marietta Lithium Quarry (Martin Marietta Quarry), Kings Mountain, Cleveland County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:142104
Long-form Identifier:1:3:142104:0
GUID (UUID V4):0
Nearest other occurrences of Holmquistite
2.5km (1.6 miles) ⓘFoote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
12.5km (7.8 miles) ⓘLCA Mine, Gaston County, North Carolina, USA
13.4km (8.3 miles) ⓘBessemer City Quarry, Gaston County, North Carolina, USA
78.5km (48.8 miles) ⓘHiddenite, Alexander County, North Carolina, USA
References
Kloprogge, J. T., Case, M. H., Frost, R. L. (2001) Raman microscopic study of the Li amphibole holmquistite, from the Martin Marietta Quarry, Bessemer City, NC, USA. Mineralogical Magazine, 65 (6) 775-785 doi:10.1180/0026461016560008
 
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