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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Zircon from
Lord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA


06206570017611409027408.jpg
Cyrtolite, etc.

Lord Hill Quarry, Stoneham, Oxford County, Maine, USA
06206570017611409027408.jpg
Cyrtolite, etc.

Lord Hill Quarry, Stoneham, Oxford County, Maine, USA
06162320017611409036947.jpg
Cyrtolite, etc.

Lord Hill Quarry, Stoneham, Oxford County, Maine, USA
Locality type:Quarry
Classification
Species:Zircon
Formula:Zr(SiO4)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Zircon data
Locality Data:Click here to view Lord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:28507
Long-form Identifier:1:3:28507:2
GUID (UUID V4):0
Nearest other occurrences of Zircon
2.7km (1.7 miles) ⓘCole Quarry, Stoneham, Oxford County, Maine, USA
11.7km (7.3 miles) ⓘVerrill locality, Stoneham, Oxford County, Maine, USA
16.8km (10.5 miles) ⓘBumpus Quarry, Albany, Oxford County, Maine, USA
17.2km (10.7 miles) ⓘWardwell Quarry (Pechnic Quarry), Albany, Oxford County, Maine, USA
19.1km (11.9 miles) ⓘStearns Quarry, Albany, Oxford County, Maine, USA
19.4km (12.1 miles) ⓘHurricane Mountain localities, North Conway, Conway, Carroll County, New Hampshire, USA
19.6km (12.2 miles) ⓘSongo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
20.0km (12.4 miles) ⓘJackson Falls, Jackson, Carroll County, New Hampshire, USA
20.8km (12.9 miles) ⓘBlack Cap, North Conway, Conway, Carroll County, New Hampshire, USA
23.4km (14.5 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
References
David KingeryIdentified by David Kingery: Visual Identification, Optical Analysis
Bastin, E. S. (1911) Geology of the pegmatites and associated rocks of Maine, including feldspar, quartz, mica, and gem deposits. Bulletin 445. US Geological Survey doi:10.3133/b445
 
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