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
Bellows Falls, Rockingham, Windham County, Vermont, USA


08406000017370224166793.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
01189170017370224179963.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
04727970017272735802491.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
00965220017271984804176.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
04727970017272735802491.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
00965220017271984804176.jpg
Heulandite Subgroup

Bellows Falls, Rockingham, Windham County, Vermont, USA
Locality type:Village
Classification
Species:'Heulandite Subgroup' (not an IMA approved species)
Formula:(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Comments:mostly micro minerals
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Bellows Falls, Rockingham, Windham County, Vermont, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:41299
Long-form Identifier:1:3:41299:5
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
62.4km (38.8 miles) ⓘWilton Crushed Stone Quarry, Wilton, Hillsborough County, New Hampshire, USA
64.2km (39.9 miles) ⓘCheapside Quarry (East Deerfield Quarry; Trew Corp. Quarry), Deerfield, Franklin County, Massachusetts, USA
75.8km (47.1 miles) ⓘRoute 101/101A road cuts, Amherst, Hillsborough County, New Hampshire, USA
86.6km (53.8 miles) ⓘQuabbin Aqueduct shaft No. 10 locality, Hardwick, Worcester County, Massachusetts, USA
References
Hitchcock, Edward (1835) Report on the geology, mineralogy, botany, and zoology of Massachusetts (2nd ed.) J.S. and C. Adams, Amherst, MD. pages 393, 430
 
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