French Mine (New Hampshire Mica and Mining Co. Mine), Alstead, Cheshire Co., New Hampshire, USA

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Granite pegmatite, Alstead field.

References

Sterrett, Douglas Bovard (1923): Mica deposits of the United States. (USGS Bulletin 740).

Megathlin, G. A. (1928): Spodumene and Autunite from Alstead, New Hampshire (American Mineralogist 13(12):578-579)

Meyers & Stewart (1956): Geology of New Hampshire, Part III.

Mineral List

Albite
var: Cleavelandite
'Albite-Anorthite Series'
Almandine
Autunite

Beryl
Biotite
Fluorapatite
Graftonite

Microcline
Muscovite
Quartz
Schorl

Sillimanite
Spodumene
var: Hiddenite ?
var: Kunzite ?

16 entries listed. 11 valid minerals.

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