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
Thomasville Quarry (Martin Marietta Quarry), Thomasville, Davidson County, North Carolina, USA


Locality type:Quarry
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Confirmation
Validity:Confirmed
Confirmation Methods:Dealer/Collection Label
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Thomasville Quarry (Martin Marietta Quarry), Thomasville, Davidson County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:797486
Long-form Identifier:1:3:797486:1
GUID (UUID V4):0
Nearest other occurrences of Laumontite
8.2km (5.1 miles) ⓘLexington Quarry, Davidson County, North Carolina, USA
25.2km (15.6 miles) ⓘJamestown Quarry, Jamestown, Guilford County, North Carolina, USA
28.8km (17.9 miles) ⓘNorth Quarry, Winston-Salem, Forsyth County, North Carolina, USA
30.9km (19.2 miles) ⓘPomona Quarry, Pomona, Greensboro, Guilford County, North Carolina, USA
35.8km (22.2 miles) ⓘSmith Grove Quarry, Davie County, North Carolina, USA
40.2km (25.0 miles) ⓘWoodleaf Quarry, Woodleaf, Rowan County, North Carolina, USA
41.2km (25.6 miles) ⓘCentral Rock Products Quarry, Guilford County, North Carolina, USA
48.4km (30.1 miles) ⓘStokesdale Quarry (Vulcan-Stokesdale Quarry), Stokesdale, Guilford County, North Carolina, USA
References
The Adams Collection ( Steve and Laurie Adams)
 
and/or  
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