ataxite

any iron meteorite containing less than about 6 percent nickel (nickel-poor ataxites) or more than about 11 percent nickel (nickel-rich ataxites). ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/a/118

ataxite

A rare variety of iron meteorite (designated type D) made almost entirely of taenite, a solid solution of iron and 27% to 65% nickel; the Greek name means `without structure” and refers to the lack of a visible Widmanstätten pattern (spindles of kamacite being visible only microscopically). Strangel...
Found on http://www.daviddarling.info/encyclopedia/A/ataxite.html

Ataxite

Ataxites (from Greek meaning `without structure`) are a structural class of iron meteorites with a high nickel content and show no Widmanstätten patterns upon etching. ==Characteristics== ==Classification== Most ataxites belong to the IVB group or are classified as `Iron, ungrouped` because they do not fit in any of the groups currently recog...
Found on http://en.wikipedia.org/wiki/Ataxite
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