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
North Branford Quarry, North Branford, New Haven County, Connecticut, USA


03949100017371161698006.jpg
Stilbite Subgroup, etc.

North Branford Quarry, North Branford, New Haven County, Connecticut, USA
03949100017371161698006.jpg
Stilbite Subgroup, etc.

North Branford Quarry, North Branford, New Haven County, Connecticut, USA
01299920017272043278503.jpg
Stilbite Subgroup, etc.

North Branford Quarry, North Branford, New Haven County, Connecticut, USA
Locality type:Quarry
Classification
Species:'Stilbite Subgroup' (not an IMA approved species)
Formula:M6-7[Al8-9Si27-28O72] · nH2O
Habit:Micro tabular prismatic
Colour:white
Abundance at site:Very Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Quartz1
Stilpnomelane1
Data
Mineral Data:Click here to view Stilbite Subgroup data
Locality Data:Click here to view North Branford Quarry, North Branford, New Haven County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:967906
Long-form Identifier:1:3:967906:1
GUID (UUID V4):0
Nearest other occurrences of Stilbite Subgroup
7.4km (4.6 miles) ⓘStony Creek Quarry (Norcross Granite Gneiss Rock Quarries; Castellucci Quarry), Branford, New Haven County, Connecticut, USA
13.0km (8.1 miles) ⓘMount Carmel Trap Rock Quarry, Hamden, New Haven County, Connecticut, USA
13.1km (8.2 miles) ⓘPine Rock Quarry (Farnham Quarry), Hamden, New Haven County, Connecticut, USA
15.1km (9.4 miles) ⓘReed's Gap Quarry (New Haven Trap Rock quarry; Tilcon Durham quarry), Durham, Middlesex County, Connecticut, USA
21.7km (13.5 miles) ⓘMesa Drive roadcuts, Bethany, New Haven County, Connecticut, USA
23.6km (14.7 miles) ⓘHubbard Park Quartz locality, Meriden, New Haven County, Connecticut, USA
23.6km (14.7 miles) ⓘPillow lava locality, Meriden, New Haven County, Connecticut, USA
23.7km (14.7 miles) ⓘHaynes Materials Quarry, Naugatuck, New Haven County, Connecticut, USA
24.5km (15.2 miles) ⓘO and G quarry # 3, Prospect, New Haven County, Connecticut, USA
24.5km (15.2 miles) ⓘState Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex County, Connecticut, USA
References
Moritz, Harold (n.d.) Personal Communication.
 
and/or  
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