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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Magnetite from
Grenci-Ellis Granite quarry, Mount Desert, Hancock County, Maine, USA


Locality type:Quarry
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Grenci-Ellis Granite quarry, Mount Desert, Hancock County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:219370
Long-form Identifier:1:3:219370:0
GUID (UUID V4):0
Nearest other occurrences of Magnetite
23.3km (14.5 miles) ⓘTwin Lead Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
24.1km (15.0 miles) ⓘStewart Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
24.5km (15.2 miles) ⓘDouglass Copper Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
24.8km (15.4 miles) ⓘOwen Lead Prospect, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
24.8km (15.4 miles) ⓘOwen Mine, Blue Hill, Blue Hill - Castine Mining District, Hancock County, Maine, USA
28.3km (17.6 miles) ⓘGouldsborough Mine (Gouldsboro Mine), Gouldsboro, Hancock County, Maine, USA
28.4km (17.6 miles) ⓘT. M. Blaisdell Granite Quarry, Franklin, Hancock County, Maine, USA
29.6km (18.4 miles) ⓘLittle Deer Isle, Deer Isle, Hancock County, Maine, USA
32.8km (20.4 miles) ⓘTapley Mine, Brooksville, Blue Hill - Castine Mining District, Hancock County, Maine, USA
34.4km (21.4 miles) ⓘDeer Isle Mine, Deer Isle, Hancock 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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