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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Heulandite Subgroup from
Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA


02188460017272735809486.jpg
Heulandite Subgroup, etc.

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
00723950017367326613115.jpg
Heulandite Subgroup

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
02188460017272735809486.jpg
Heulandite Subgroup, etc.

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
09444350017272028528739.jpg
Heulandite Subgroup

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
02188460017272735809486.jpg
Heulandite Subgroup, etc.

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
09444350017272028528739.jpg
Heulandite Subgroup

Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, 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
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Epidote1
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Wilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:900800
Long-form Identifier:1:3:900800:7
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
13.4km (8.3 miles) ⓘRoute 101/101A road cuts, Amherst, Hillsborough County, New Hampshire, USA
41.7km (25.9 miles) ⓘPJ Keating Quarry (Dracut Quarry; Condon Quarry; Essex Bituminous), Dracut, Middlesex County, Massachusetts, USA
47.9km (29.8 miles) ⓘBrox Quarry, Dracut, Middlesex County, Massachusetts, USA
62.4km (38.8 miles) ⓘBellows Falls, Rockingham, Windham County, Vermont, USA
62.9km (39.1 miles) ⓘQuabbin Aqueduct shaft No. 10 locality, Hardwick, Worcester County, Massachusetts, USA
64.0km (39.8 miles) ⓘNorth Woburn, Woburn, Middlesex County, Massachusetts, USA
67.8km (42.2 miles) ⓘBlueberry Mountain Quarry (Blueberry Hill), Woburn, Middlesex County, Massachusetts, USA
74.6km (46.3 miles) ⓘAggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex County, Massachusetts, USA
74.9km (46.6 miles) ⓘCheapside Quarry (East Deerfield Quarry; Trew Corp. Quarry), Deerfield, Franklin County, Massachusetts, USA
81.5km (50.6 miles) ⓘAggregate Industries Quarry (Lynn Sand and Stone Co. Quarry; Bardon Trimount Quarry; Hume Quarry), Swampscott, Essex County, Massachusetts, USA
References
P. Cristofono collection, 2014
 
and/or  
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