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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Muscovite from
Blandford mica mines, Blandford, Hampden County, Massachusetts, USA


01190340017362334974000.jpg
Muscovite, etc.

Blandford mica mines, Blandford, Hampden County, Massachusetts, USA
01190340017362334974000.jpg
Muscovite, etc.

Blandford mica mines, Blandford, Hampden County, Massachusetts, USA
03497070017362334985995.jpg
Muscovite, etc.

Blandford mica mines, Blandford, Hampden County, Massachusetts, USA
Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite5
Beryl5
- var Heliodor1
Quartz4
Microcline2
Metatorbernite1
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Blandford mica mines, Blandford, Hampden County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:29876
Long-form Identifier:1:3:29876:6
GUID (UUID V4):0
Nearest other occurrences of Muscovite
10.3km (6.4 miles) ⓘHudson & Chester Quarry, Becket, Berkshire County, Massachusetts, USA
18.5km (11.5 miles) ⓘLoudville Lead Mines (Manhan Lead-Silver Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire County, Massachusetts, USA
26.0km (16.2 miles) ⓘClark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA
27.3km (17.0 miles) ⓘMacomber Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA
29.7km (18.4 miles) ⓘLee Lime mine (Lee Lime quarry), Lee, Berkshire County, Massachusetts, USA
32.0km (19.9 miles) ⓘBarrus farm pegmatite localities, Goshen, Hampshire County, Massachusetts, USA
32.5km (20.2 miles) ⓘRobin Drive, Ratlum Mountain, Canton, Hartford County, Connecticut, USA
33.0km (20.5 miles) ⓘBeuman Road Chloritoid Locality, Windsor, Berkshire County, Massachusetts, USA
33.2km (20.7 miles) ⓘRatlum Mountain, Canton, Hartford County, Connecticut, USA
34.4km (21.4 miles) ⓘBetts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
References
"Western Massachusetts Mineral Localities" by Plante, A.R., Valley Geology Press, 1992
 
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