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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Stilbite Subgroup from
O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA


03662010017408795594528.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
05904690017272021123739.jpg
Stilbite Subgroup

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
04554060017271986922333.jpg
Stilbite-Ca, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
07094270017272021139551.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
02119450017408787278496.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
06763350017468604578795.jpg
Stilbite Subgroup

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
04554060017271986922333.jpg
Stilbite-Ca, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
00288730017468604588967.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
09609780017411411497714.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
05904690017272021123739.jpg
Stilbite Subgroup

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
04554060017271986922333.jpg
Stilbite-Ca, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
05145340017272021197741.jpg
Stilbite Subgroup, etc.

O & G Southbury Quarry, Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
Locality type:Quarry
Classification
Species:'Stilbite Subgroup' (not an IMA approved species)
Formula:M6-7[Al8-9Si27-28O72] · nH2O
Comments:Late-forming crystals on prehnite or quartz to 2 cm, with other zeolites and apophyllite.
Habit:tabular, wheat-sheaf and bow tie aggregates
Colour:white, tan, yellow-orange
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Calcite8
Anhydrite2
Heulandite-Ca2
Quartz2
- var Chalcedony2
Pumpellyite Group1
Data
Mineral Data:Click here to view Stilbite Subgroup data
Locality Data:Click here to view O & G Southbury Quarry (Silliman Quarry; O & G No. 2 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:37823
Long-form Identifier:1:3:37823:9
GUID (UUID V4):0
Nearest other occurrences of Stilbite Subgroup
3.6km (2.2 miles) ⓘO & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA
5.8km (3.6 miles) ⓘNonnewaug River Industrial Park, Woodbury, Litchfield County, Connecticut, USA
13.5km (8.4 miles) ⓘState Route 67 construction site, Oxford, New Haven County, Connecticut, USA
14.1km (8.8 miles) ⓘRoute 73 quarry, Waterbury, New Haven County, Connecticut, USA
15.4km (9.6 miles) ⓘSky Ridge railroad cut, Hawleyville, Newtown, Fairfield County, Connecticut, USA
16.0km (9.9 miles) ⓘBarrett Brothers Quarry (D and J Quarry), Beacon Falls, New Haven County, Connecticut, USA
16.7km (10.4 miles) ⓘBlue Stone Quarry, Waterbury, New Haven County, Connecticut, USA
17.1km (10.6 miles) ⓘHaynes Materials Quarry, Naugatuck, New Haven County, Connecticut, USA
17.7km (11.0 miles) ⓘO and G quarry # 3, Prospect, New Haven County, Connecticut, USA
17.8km (11.1 miles) ⓘNew England Materials quarry, Monroe, Fairfield County, Connecticut, USA
References
Weber, Marcelle H., Sullivan, Earle C. (1995) Connecticut Mineral Locality Index. Rocks & Minerals, 70 (6) 396-409 doi:10.1080/00357529.1995.11761569p.407
 
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