Manganese Oxide Infrared Spectra

The spectra that follow were orginally presented in Potter RM, Rossman GR (1979) The manganese(IV) oxides: identification, hydration and structural relationships by infrared spectroscopy. American Mineralogist 64, 1199-1218. In most cases, the spectra have been re-run on a Nicolet Magna 860 FTIR from the original KBr pellets for presentation here.

Not all spectra in that publication are available because some of the samples decomposed or altered in the KBr pellets over time.

Data are available in ASCII x,y format (CSV designation)

and

a few in Nicolet Instruments SPA binary format


Data File
Mineral Locality RM Potter Number Associated Date CSV SPA
Chalcophanite Group




Aurorite Aurora Mine, NV 39 10-15-77






Backstromite Langban, Sweden RG Burns 40517 6-1-77
Backstromite labeled Feitknechtite Hamayokokawa Mine, Yokokawa, Tatsunimachi, Kami-ina-gun, Nagana, Japan Smithsonian 120752 6-19-77
Braunite Palos Verdes Hills, CA 70 8-20-77
Cryptomelane Patagonia, AZ 27 4-23-77
Groutite Cuyuna Range, MN 71 1-1-78
Groutite Talcville, NY (8 mi SE of Gouverneur) 72 1-2-78






Hollandite Group




Coronadite Broken Hill, New South Wales 23 6-30-77
Hollandite Sorharas, Sweden 31 8-16-77






Hausmanite Synthetic 76 8-30-77
Hausmanite Synthetic 75 8-16-76
Hausmanite labeled Braunite Langbanshyttan, Vermland, Sweden 74 7-1-77
Lithiophorite Sausalito, CA 43 9-3-77
Manganite Sagamore Mine, Riverton, MN 77, CIT 6048 7-2-77
Manganosite Langbon, Sweden 79 8-18-77
Manganosite Synthetic 80 9-1-77
Marokite Tachgagalt, Ovarzazate, Morocco LACo Museum Nat Hist 13888 8-15-77
Nsutite Nsuta, Ghana 12, CIT 9434 6-15-77
Pyrolusite Nissan, Germany 4 6-14-77
Ramsdellite Lake Valley, NM 22 7-26-76
Rancieite Paxton's Cave, Allegheny Co, VA 63 4-2-77
Rancieite Orienta Province, Cuba 65 6-4-77
Romanechite Pribble Mine, VA 37 10-27-77
Romanechite Mayfield Prospect, Valentine, TX 36 4-22-77
Romanechite Van Horne, TX 38 6-3-77
Todorokite Palos Verdes Hills, LA Co., CA 55 7-8-77
Todorokite Jbel Kourat, Morocco Smithsonian #128321 8-26-77
Todorokite Unknown 61 4-20-77
Woodruffite Sterling Hill, NJ 62 6-18-77