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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Almandine from
Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA


01010990017363690655736.jpg
Almandine

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
06798930017272012501939.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
08652910017272012526156.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
06722600017362842447405.jpg
Almandine

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
04984610017363690655714.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
07013530017363690659072.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
01010990017363690655736.jpg
Almandine

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
06798930017272012501939.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
08652910017272012526156.jpg
Almandine, etc.

Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Locality type:Quarry
Classification
Species:Almandine
Formula:Fe32+Al2(SiO4)3
Comments:crystals to 1 cm, and occasionally gemmy, flattened crystals in muscovite books
Habit:trapezohedra, sometimes flattened, with dodecahedral modifications
Colour:maroon
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Muscovite1
Albite1
Data
Mineral Data:Click here to view Almandine data
Locality Data:Click here to view Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:36948
Long-form Identifier:1:3:36948:0
GUID (UUID V4):0
Nearest other occurrences of Almandine
0.6km (0.4 miles) ⓘQuarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
1.5km (1.0 miles) ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
2.0km (1.2 miles) ⓘRock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
2.3km (1.4 miles) ⓘAlmandine schorl and sillimanite locality, Haddam, Middlesex County, Connecticut, USA
2.3km (1.4 miles) ⓘArnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex County, Connecticut, USA
2.4km (1.5 miles) ⓘJail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex County, Connecticut, USA
2.5km (1.6 miles) ⓘForest Ridge Road, Higganum, Haddam, Middlesex County, Connecticut, USA
2.7km (1.7 miles) ⓘAnderson No. 2 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
2.8km (1.7 miles) ⓘAnderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
3.2km (2.0 miles) ⓘEnegren Mica Mine, East Hampton, Middlesex County, Connecticut, USA
References
Scovil, Jeffrey A. (1992) Famous Mineral Localities: The Gillette Quarry, Haddam Neck, Connecticut. The Mineralogical Record, 23 (1) 19-80
 
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