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
Nello Teer Quarry, Mill Grove, Durham, Durham County, North Carolina, USA


Locality type:Quarry
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Nello Teer Quarry, Mill Grove, Durham, Durham County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:101010
Long-form Identifier:1:3:101010:7
GUID (UUID V4):0
Nearest other occurrences of Laumontite
3.3km (2.1 miles) ⓘDurham Quarry (Rougemount Quarry), Durham, Durham County, North Carolina, USA
50.3km (31.3 miles) ⓘHyco Reservoir (Hyco Lake) roadcut site, Person County, North Carolina, USA
74.9km (46.6 miles) ⓘCentral Rock Products Quarry, Guilford County, North Carolina, USA
90.6km (56.3 miles) ⓘJamestown Quarry, Jamestown, Guilford County, North Carolina, USA
90.9km (56.5 miles) ⓘPomona Quarry, Pomona, Greensboro, Guilford County, North Carolina, USA
93.9km (58.3 miles) ⓘStokesdale Quarry (Vulcan-Stokesdale Quarry), Stokesdale, Guilford County, North Carolina, USA
References
Rocks & Min.: 60: 85, 89 & 96-97.
 
and/or  
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