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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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Rhodochrosite from
Bennett Quarry, Buckfield, Oxford County, Maine, USA


06498280017362474525643.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
01525100017272014307608.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
00105310017272014348072.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
04496770017272014357958.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
06498280017362474525643.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
01525100017272014307608.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
00105310017272014348072.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
04496770017272014357958.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
06608980017366311399419.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
08144400017272014363746.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
00105310017272014348072.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
04496770017272014357958.jpg
Rhodochrosite

Bennett Quarry, Buckfield, Oxford County, Maine, USA
Locality type:Quarry
Classification
Species:Rhodochrosite
Formula:MnCO3
Comments:Possibly world's largest crystals from a granite pegmatite.
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz6
- var Smoky Quartz5
Eosphorite1
Data
Mineral Data:Click here to view Rhodochrosite data
Locality Data:Click here to view Bennett Quarry, Buckfield, Oxford County, Maine, USA
Photo GalleryView Gallery (11 photos)
Data Identifiers
Mindat Occurrence Record ID:9513
Long-form Identifier:1:3:9513:6
GUID (UUID V4):0
Nearest other occurrences of Rhodochrosite
3.2km (2.0 miles) ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA
4.5km (2.8 miles) ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA
7.9km (4.9 miles) ⓘMount Marie Quarries, Paris, Oxford County, Maine, USA
9.4km (5.8 miles) ⓘMount Rubellite Quarries, Mount Rubellite, Hebron, Oxford County, Maine, USA
21.6km (13.4 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
24.7km (15.4 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
25.2km (15.7 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
26.6km (16.6 miles) ⓘBerry-Havey Quarry, Poland, Androscoggin County, Maine, USA
36.4km (22.6 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
36.5km (22.7 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
References
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
 
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