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 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 |