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Almandine from
Diamond Lake locality, Glastonbury, Hartford County, Connecticut, USA


Classification
Species:Almandine
Formula:Fe32+Al2(SiO4)3
Comments:Usually small (<5mm) but well formed crystals in fine-grained schist, larger crystals to 3 cm in coarser schist.
Confirmed as almandine using XRF (Fe:Mn ratio = 83:17) by Harold Moritz.
Habit:dodecahedral and trapezohedral
Colour:maroon
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Very common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Staurolite9
Data
Mineral Data:Click here to view Almandine data
Locality Data:Click here to view Diamond Lake locality, Glastonbury, Hartford County, Connecticut, USA
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:322172
Long-form Identifier:1:3:322172:3
GUID (UUID V4):0
Nearest other occurrences of Almandine
4.1km (2.6 miles) Birch Mountain Road, Glastonbury, Hartford County, Connecticut, USA
5.8km (3.6 miles) Spinelli prospect (Spinelli quarry), Glastonbury, Hartford County, Connecticut, USA
8.6km (5.3 miles) Nike prospect, Portland, Middlesex County, Connecticut, USA
10.1km (6.3 miles) Hollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
10.4km (6.5 miles) Husband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
10.5km (6.5 miles) Case Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
10.5km (6.5 miles) Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
10.6km (6.6 miles) Case Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
10.6km (6.6 miles) Case Quarries, Portland, Middlesex County, Connecticut, USA
10.6km (6.6 miles) Case Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
References
 
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