A Geoscience Digital Image Library

TitleNickeline (niccolite) with polydymite from Cottonwood, Nevada
DescriptionThe copper colored mineral in this photo is nickeline, a nickel arsenide mineral having formula NiAs. The nickeline is mixed with some gray colored polydymite, Ni3S4, which is not easily seen unless the photo is enlarged. Also present are veins mostly made of green malachite, a copper carbonate hydroxide. The sample is about 9 cm across. It comes from a nickel mine in Nevada.
LocationUSA ▹ Nevada. Near Cottonwood. Nickel Mine.
PhotographerDarla Sondrol. 2001-07-10.
CollectionUniversity of North Dakota Mineralogy Collection #167.
Key wordsniccolite, nickeline, polydymite, Nevada
Tech details698 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1111