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Opal from
Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA


Locality type:Quarry
Classification
Species:Opal
Formula:SiO2 · nH2O
Comments:Coatings mostly invisible unless illuminated by SW UV, rarely colored blue-green in daylight and if thick enough has a translucent, fine-grained bubbly appearance.
Habit:bubbly coatings
Colour:colorless to aqua
Luminescent properties:green
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visual (Fluorescence)
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:991636
Long-form Identifier:1:3:991636:4
GUID (UUID V4):0
Nearest other occurrences of Opal
0.3km (0.2 miles) ⓘSimpson prospect #1, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
0.5km (0.3 miles) ⓘHollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
0.5km (0.3 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
0.8km (0.5 miles) ⓘEureka Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.3km (0.8 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
2.1km (1.3 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
2.3km (1.5 miles) ⓘGotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
2.4km (1.5 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
4.6km (2.9 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
5.1km (3.2 miles) ⓘRocky Hill Quarry, Rocky Hill, Hartford County, Connecticut, USA
References
 
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