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


Locality type:Quarry
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Comments:Common in stilbite veins, less common in prehnite veins. Crystals to 5mm.
Habit:Acicular crystals with typical "hypodermic" terminations
Colour:Clear colorless when fresh
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:
Stilbite Subgroup1
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Martin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:39889
Long-form Identifier:1:3:39889:9
GUID (UUID V4):0
Nearest other occurrences of Laumontite
0.1km (0.1 miles) ⓘHickory Quarry, Hickory, Catawba County, North Carolina, USA
29.4km (18.3 miles) ⓘCaldwell Quarry (Martin Marietta Quarry), Lenoir, Caldwell County, North Carolina, USA
30.6km (19.0 miles) ⓘWhitnel Quarry, Lenoir, Caldwell County, North Carolina, USA
56.5km (35.1 miles) ⓘFoote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
63.7km (39.6 miles) ⓘWoodleaf Quarry, Woodleaf, Rowan County, North Carolina, USA
74.6km (46.3 miles) ⓘSmith Grove Quarry, Davie County, North Carolina, USA
75.7km (47.0 miles) ⓘPineville Quarry, Pineville, Mecklenburg County, North Carolina, USA
76.0km (47.2 miles) ⓘArrowood Quarry, Charlotte, Mecklenburg County, North Carolina, USA
78.1km (48.5 miles) ⓘPineville Quarry, York County, South Carolina, USA
95.5km (59.4 miles) ⓘLexington Quarry, Davidson County, North Carolina, USA
References
K. Wood collection
 
and/or  
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