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


Locality type:Quarry
Classification
Species:'Feldspar Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Manganese Oxides1
- var Manganese Dendrites1
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Lord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:1017100
Long-form Identifier:1:3:1017100:6
GUID (UUID V4):0
Nearest other occurrences of Feldspar Group
6.8km (4.2 miles) ⓘMillard Chandler Mine, Chatham, Carroll County, New Hampshire, USA
16.7km (10.4 miles) ⓘDonahue Quarry (Donahue Prospect), Albany, Oxford County, Maine, USA
16.8km (10.5 miles) ⓘBumpus Quarry, Albany, Oxford County, Maine, USA
25.1km (15.6 miles) ⓘIron Mountain Mines, Iron Mountain, Bartlett, Carroll County, New Hampshire, USA
25.3km (15.7 miles) ⓘRedstone "Red Granite" quarry, Redstone, Conway, Carroll County, New Hampshire, USA
25.9km (16.1 miles) ⓘWaisanen Quarry (Tamminen-Waisanen Quarry), Greenwood, Oxford County, Maine, USA
26.6km (16.6 miles) ⓘMascot Mine, Gorham, Coos County, New Hampshire, USA
38.1km (23.7 miles) ⓘGeorge Elliot Quarry (North Rumford Mica Quarry), Rumford, Oxford County, Maine, USA
39.5km (24.6 miles) ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA
41.7km (25.9 miles) ⓘLittle Singepole Mountain prospects, Paris, Oxford County, Maine, USA
References
Woodard, H. H. (1951) The geology and paragenesis of the Lord Hill pegmatite. American Mineralogist, 36 (11-12) 869-883
 
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