[1] Stony-iron meteorites are all differentiated, meaning that they show signs of alteration.

Pallasites have a matrix of meteoric iron with embedded silicates (most of it olivine).

The meteoric iron occurs in clasts instead of a matrix.

[3][4] They are in the top rank of all Meteorite classification schemes, usually called "Type".

Accessory minerals that also include non-silicates are: carlsbergite, chromite, cohenite, daubréelite, feldspar, graphite, ilmenite, merrillite, low-calcium pyroxene, schreibersite, tridymite and troilite.