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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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Muscovite from
Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA


03850740017372323392211.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
00485340017272014608299.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
06908530017272014615235.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
09567060017272014628735.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
07521910017366404933159.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
06630490017372323397208.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
08503780017372323392610.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
09567060017272014628735.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
00137910017372323408465.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
00485340017272014608299.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
06908530017272014615235.jpg
Muscovite

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
09567060017272014628735.jpg
Muscovite, etc.

Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
Locality type:Quarry
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite14
- var Cleavelandite4
Fluorapatite10
Triphylite2
Graftonite2
Beryl2
Quartz1
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (7 photos)
Data Identifiers
Mindat Occurrence Record ID:32270
Long-form Identifier:1:3:32270:8
GUID (UUID V4):0
Localities for Muscovite in this Region
No. 1 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
No. 2 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
No. 3 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
No. 4 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
No. 5 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
No. 6 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
Nearest other occurrences of Muscovite
0.0km (0.0 miles) ⓘNo. 1 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
0.3km (0.2 miles) ⓘNo. 3 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
0.4km (0.2 miles) ⓘNo. 5 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
3.8km (2.4 miles) ⓘStandard Mine, Orange, Grafton County, New Hampshire, USA
6.4km (4.0 miles) ⓘHoyt Hill Quarry, Orange, Grafton County, New Hampshire, USA
6.9km (4.3 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
7.7km (4.8 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
7.8km (4.8 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
8.7km (5.4 miles) ⓘTruman Patten Quarry, Alexandria, Grafton County, New Hampshire, USA
9.1km (5.6 miles) ⓘMorgan Mica prospect, Alexandria, Grafton County, New Hampshire, USA
References
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
Thompson, Woodrow B., Falster, Alexander U., Mortimer, Thomas J. (2022) The Keyes Mica Mines, Orange, Grafton County, New Hampshire. Rocks & Minerals, 97 (4) 302-329 doi:10.1080/00357529.2022.2053622
 
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