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Meteorite Var Ataxites (1) 100 mm x 49 mm x 50 mm 341 grams

$341.00

We were lucky enough to find two of these choice collectors items available and are now offering them to our wonderful clients on a first in best dressed sorry there are only the two specimens available but here is number 1

Some iron meteorites reveal no obvious internal structure upon etching, and they are called ataxites, for the Greek word for “without structure”. Ataxites consist primarily of nickel-rich taenite, and kamacite is found only in the form of microscopic lamellae and spindles.

Consequently, ataxites represent the most nickel-rich meteorites known, and are among the most rare. Among the 50 witnessed iron meteorite falls, none has been an ataxite; all of the known ataxites are finds.

Paradoxically, the largest meteorite known, Hoba, belongs to this rare structural class

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We were lucky enough to find two of these choice collectors items available and are now offering them to our wonderful clients on a first in best dressed sorry there are only the two specimens available but here is number 1

Some iron meteorites reveal no obvious internal structure upon etching, and they are called ataxites, for the Greek word for “without structure”. Ataxites consist primarily of nickel-rich taenite, and kamacite is found only in the form of microscopic lamellae and spindles.

Consequently, ataxites represent the most nickel-rich meteorites known, and are among the most rare. Among the 50 witnessed iron meteorite falls, none has been an ataxite; all of the known ataxites are finds.

Paradoxically, the largest meteorite known, Hoba, belongs to this rare structural class

Iron meteorites are composed largely of nickel-iron metal, and most contain only minor accessory minerals.

These accessory minerals often occur in rounded nodules that consist of the iron-sulfide troilite or graphite, often surrounded by the iron-phosphide schreibersite and the iron-carbide cohenite.

Despite the fact that some iron meteorites contain silicate inclusions, most have fundamentally the same superficial appearance.

Presently, iron meteorites are classified under two established systems.

Just a few decades ago, iron meteorites were exclusively classified according to the macroscopic structures revealed when their polished surface was etched with nitric acid.

Depending on these structures, they were separated into three classes: octahedrites, hexahedrites, and ataxites.

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