Bearpaw Mts, Hill Co., Montana, USA

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References

Pecora, W.T. (1962) Carbonatite problem in the Bearpaw Mountains, Montana. In: Petrological Studies: a Volume in Honor of A.F. Buddington (A.E.J. Engel, James & B.F. Leonard, editors). The Geological Society of America, New York, NY (83-104).

Reguir, E.P. and Mitchell, R.H. (2000) The mineralogy of carbonatites and related potassic syenites from the Rocky Boy stock, Bearpaw Mountains, north-central Montana. GeoCanada 2000, CD-ROM abstract., 374.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Actinolite Aegirine Albite 'Albite-Anorthite Series' Analcime Anatase 'Ancylite' Ancylite-(Ce) Annite 'Apatite' Augite 'Axinite' Baryte Barytolamprophyllite Bastnäsite-(Ce) Biotite Burbankite (TL)

Calcite Calkinsite-(Ce) (TL) Cancrinite Chalcopyrite Chevkinite-(Ce) 'Chlorite Group' 'Clinopyroxene Subgroup' Columbite Crichtonite Datolite Epidote Eudialyte Fluorapatite Galena Gibbsite Goethite Hastingsite

Henrymeyerite 'Hornblende' Ilmenite Lamprophyllite 'Lanthanite' Leucite Loparite-(Ce) Magnetite var: Titaniferous Magnetite Microcline Muscovite Natrolite Nepheline 'Olivine' Orthoclase Perovskite Phlogopite

Prehnite Priderite Pyrite Pyrochlore Supergroup var: Betafite (of Hogarth 1977) Pyrophanite 'Pyroxene Group' Pyrrhotite Quartz Rutile Sanidine Sodalite Strontiochevkinite Tetrahedrite Thomsonite-Ca Thorite Titanite Zircon

81 entries listed. 54 valid minerals. 2 type localities (valid minerals).

Localities in this Region

USA Montana Hill Co. Bearpaw Mts Beaver Creek Big Sandy Creek Vermiculite prospect No. 6 Pegmatite Peak