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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Orthoclase from
Sneech Pond copper mines (Copper Mine Hill), Cumberland, Providence County, Rhode Island, USA


Locality type:Mine
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Sneech Pond copper mines (Copper Mine Hill), Cumberland, Providence County, Rhode Island, USA
Data Identifiers
Mindat Occurrence Record ID:37239
Long-form Identifier:1:3:37239:6
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
3.1km (1.9 miles) ⓘDiamond Hill, Cumberland, Providence County, Rhode Island, USA
8.4km (5.2 miles) ⓘConklin Quarry, Lime Rock, Lincoln, Providence County, Rhode Island, USA
9.1km (5.7 miles) ⓘDexter Quarry (Dexter Lime Quarry), Lime Rock, Lincoln, Providence County, Rhode Island, USA
18.0km (11.2 miles) ⓘSpring Lake, Harrisville, Burrillville, Providence County, Rhode Island, USA
19.0km (11.8 miles) ⓘManton Avenue Quarry, Manton, Providence, Providence County, Rhode Island, USA
26.1km (16.2 miles) ⓘAggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex County, Massachusetts, USA
42.0km (26.1 miles) ⓘHammond St. Quarry, Brookline, Norfolk County, Massachusetts, USA
42.3km (26.3 miles) ⓘGold Leaf Quarry, Quincy, Norfolk County, Massachusetts, USA
43.4km (26.9 miles) ⓘGranite Railway Quarry (Granite Rail Quarry), Quincy, Norfolk County, Massachusetts, USA
43.9km (27.3 miles) ⓘBristol Ferry, Portsmouth, Newport County, Rhode Island, USA
References
AmMin 22:279
 
and/or  
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