French Quarry (New Hampshire Mica and Mining Co. Quarry), 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:

Almandine
Apatite-(CaF)
Autunite
Beryl
Biotite

Graftonite
Microcline
Muscovite
Quartz
Schorl

Spodumene
var: Hiddenite ?
var: Kunzite ?

13 entries listed. 10 valid minerals.

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