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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Opal-AN from
Ryerson Hill Quarries, Paris, Oxford County, Maine, USA


01189770017867603835136.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
01839300017272023419736.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
05265510017272020369596.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
08693680017364731773656.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
07850570017362067027573.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
03382900017364731786988.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
05535310017272035888808.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
03958490017272023406694.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
01084320017360822527220.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
01839300017272023419736.jpg
Opal-AN

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
07871620017272035916486.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
03958490017272023406694.jpg
Hyalite, etc.

Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
Locality type:Quarry
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Opal3
- var Hyalite2
Quartz2
Fluorapatite1
Albite1
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Ryerson Hill Quarries, Paris, Oxford County, Maine, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:97660
Long-form Identifier:1:3:97660:6
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
2.9km (1.8 miles) ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA
3.2km (2.0 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
13.2km (8.2 miles) ⓘHeikkinen Quarry, Greenwood, Oxford County, Maine, USA
13.8km (8.6 miles) ⓘHayes Ledge Quarries (East and West), Greenwood, Oxford County, Maine, USA
25.8km (16.0 miles) ⓘSongo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
27.0km (16.8 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
32.8km (20.4 miles) ⓘHeath Quarry, Casco, Cumberland County, Maine, USA
34.2km (21.2 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
34.3km (21.3 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
34.3km (21.3 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
References
 
and/or  
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