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 from
Lovejoy Gravel pits, Conway, Carroll County, New Hampshire, USA


Locality type:Pit
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Lovejoy Gravel pits, Conway, Carroll County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:31945
Long-form Identifier:1:3:31945:8
GUID (UUID V4):0
Nearest other occurrences of Opal
1.4km (0.8 miles) ⓘGovernment pit, Albany, Carroll County, New Hampshire, USA
4.6km (2.8 miles) ⓘMiddle Moat Mountain locality, Hale's Location, Carroll County, New Hampshire, USA
29.5km (18.3 miles) ⓘLord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
32.8km (20.4 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
38.2km (23.7 miles) ⓘHam and Weeks Mine, Wakefield, Carroll County, New Hampshire, USA
46.0km (28.6 miles) ⓘDonahue Quarry (Donahue Prospect), Albany, Oxford County, Maine, USA
48.9km (30.4 miles) ⓘSongo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
51.1km (31.8 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
52.1km (32.4 miles) ⓘHayes Ledge Quarries (East and West), Greenwood, Oxford County, Maine, USA
52.9km (32.8 miles) ⓘHeikkinen Quarry, Greenwood, Oxford County, Maine, USA
References
 
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