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Smaltite

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Formula:
(Co,Fe,Ni)As2
Name:
The earliest name that possibly refers to any skutterudite-like material, cobaltum eineraceum, was introduced by Georgius Agricola in 1529. Wallerius used several names for a smaltite-like mineral (kobaltglants, kobaltmalm, minera cobalti cinerea, cobaltum arsenico mineralisatum). Named speiskobalt by Werner (see Hausmann, 1813), but also seemingly equally applied to safflorite. Named in 1832 by François Sulpice Beudant in reference to "smalt", a cobalt ore used as a blue glass-coloring agent. Name modified to smaltine by François Sulpice Beudant in 1852. (Arsenikkobaltkies was used by Karl Johann August Theodor Scheerer for Norwegian skutterudite in 1837. Arsenikkobalt was used in 1852 by Gustav Rose.) Lewis S. Ramsdell (1925) studied smaltite-chloanthite, but did not solve the problem of the chemistry of the series. Ivar Oftedal (1926) reached the conclusion that smaltite and chloanthite was a series that was non-stochiometric, but with the skutterudite structure. Holmes (1947) reviewed the historically published chemical analyses of white arsenides and further supported the non-stochiometric composition of white arsenides including smaltite, skutterudite, etc. Holmes (1947) and earlier emphasized the species inhomogeneity of white arsenides. Roseboom (1962) synthesized and studied skutterudites and established chemical variations and support of the non-stochiometric compositions. Oen et al. (1984) studied white arsenide paragenesis and summarized previous studies.
A variety of Skutterudite

Arsenic-deficient variety of skutterudite; also used as a synonym for skutterudite.

Classification of Smaltite

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Chemical Properties of Smaltite

Formula:
(Co,Fe,Ni)As2
Essential elements:
All elements listed in formula:

Other Names for Smaltite

Name in Other Languages:
German:Smaltit
Simplified Chinese:砷钴矿
Spanish:Smaltita

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Smaltite

Reference List:
Hausmann (1813): 155 (as speiskobalt).
Beudant, François Sulpice (1852): v. 2: 584.
Ramsdell, Lewis S. (1925) American Mineralogist, v. 10, p. 296.
Oftedal, Ivar (1926) The Crystal Structure of Skutterudite and Related Minerals, Norsk Geologisk Tidsskrift, v. 8, p. 250-257.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 342-347.
Holmes, R. J. (1947) Higher Mineral Arsenides of Cobalt, Nickel, and Iron, Geological Society of America Bulletin, v. 58, p. 299-392.
Roseboom, Eugene H., Jr. (1962) Skutterudites (C0,Ni,Fe)As3-x: Composition and Cell Dimensions, American Mineralogist, v 47, p. 310-327.
Oen, I.S., Dunn, P.J., and Kieft, C., 1984, The nickel-arsenide assemblage from Franklin, New Jersey—Description and interpretation: Neues Jahrbuch fur Mineralogie Abhandlungen, v. 150, no. 3, p. 259–272.

Internet Links for Smaltite

Specimens:
The following Smaltite specimens are currently listed for sale on minfind.com.

Localities for Smaltite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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