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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Tantalite-(Mn) from
Tamminen Quarry, Greenwood, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Tantalite-(Mn)
Formula:Mn2+Ta2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tantalite-(Mn) data
Locality Data:Click here to view Tamminen Quarry, Greenwood, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:28440
Long-form Identifier:1:3:28440:8
GUID (UUID V4):0
Nearest other occurrences of Tantalite-(Mn)
0.1km (0.1 miles) ⓘWaisanen Quarry (Tamminen-Waisanen Quarry), Greenwood, Oxford County, Maine, USA
6.2km (3.9 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
17.1km (10.6 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
29.6km (18.4 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
29.8km (18.5 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
29.8km (18.5 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
33.6km (20.9 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
34.3km (21.3 miles) ⓘGroves Quarry (Hole in the Ground Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
34.5km (21.4 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
34.6km (21.5 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
References
W. B. Thompson, D. L. Joyner, R. G. Woodman, and V. T. King (2005) A Collector's Guide to Maine Mineral Localities. Maine Geological Survey Bulletin 41
 
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