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


Locality type:Quarry
Classification
Species:'Heulandite Subgroup' (not an IMA approved species)
Formula:(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Comments:Rare constituents of prehnite veins in crystals to 4mm.
Habit:Typical crystals with coffin shape
Colour:white
Luminescent properties:none
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Confirmation Details:Where Tested and Reference ID: K. Wood
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Martin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:39918
Long-form Identifier:1:3:39918:0
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
63.7km (39.6 miles) ⓘWoodleaf Quarry, Woodleaf, Rowan County, North Carolina, USA
78.1km (48.5 miles) ⓘPineville Quarry, York County, South Carolina, USA
References
K. Wood collection
 
and/or  
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