Description
NWA 15428
Pallasite specimens often display large olivine crystals embedded in an iron-nickel matrix. Pallasites are extremely rare and are believed to have formed in asteroidal collisions that occurred an estimated 4.5 billion years ago when iron from an asteroid mixed with the material in the mantle of another, larger asteroid.
Total known weight is 1,800 grams, of which 700 grams are smaller individuals. Only 10 full slices are in circulation. These beauties are also stabilized.
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