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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Laumontite from
Jamestown Quarry, Jamestown, Guilford County, North Carolina, USA


Locality type:Quarry
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Comments:Occurs in hornblende gneiss & metagranite.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Jamestown Quarry, Jamestown, Guilford County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:70241
Long-form Identifier:1:3:70241:8
GUID (UUID V4):0
Nearest other occurrences of Laumontite
10.3km (6.4 miles) ⓘPomona Quarry, Pomona, Greensboro, Guilford County, North Carolina, USA
16.1km (10.0 miles) ⓘCentral Rock Products Quarry, Guilford County, North Carolina, USA
25.2km (15.6 miles) ⓘThomasville Quarry (Martin Marietta Quarry), Thomasville, Davidson County, North Carolina, USA
31.6km (19.6 miles) ⓘStokesdale Quarry (Vulcan-Stokesdale Quarry), Stokesdale, Guilford County, North Carolina, USA
33.1km (20.6 miles) ⓘLexington Quarry, Davidson County, North Carolina, USA
33.4km (20.7 miles) ⓘNorth Quarry, Winston-Salem, Forsyth County, North Carolina, USA
55.3km (34.4 miles) ⓘSmith Grove Quarry, Davie County, North Carolina, USA
64.7km (40.2 miles) ⓘWoodleaf Quarry, Woodleaf, Rowan County, North Carolina, USA
90.6km (56.3 miles) ⓘNello Teer Quarry, Mill Grove, Durham, Durham County, North Carolina, USA
93.0km (57.8 miles) ⓘHyco Reservoir (Hyco Lake) roadcut site, Person County, North Carolina, USA
References
Rocks & Min.:60:96.
 
and/or  
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