Pallasites - PMG (Pallasite Main Group) are the most well-known and visually striking type of Stony-Iron meteorites, representing material from the boundary between the core and mantle of a differentiated asteroid. Formed over 4.5 billion years ago, these meteorites consist of a mixture of metallic iron-nickel and silicate minerals that crystallised under extreme conditions deep within their parent body. Catastrophic impacts later shattered these bodies, ejecting fragments into space, some of which eventually reached Earth. The PMG designation refers to the ‘Main Group’ of Pallasites, which share a similar composition and origin.

PMG Pallasites are characterised by their translucent olivine crystals embedded within a metallic iron-nickel matrix. When cut and polished, these crystals can display colours ranging from pale yellow to deep green, depending on their composition and clarity. The metal component often reveals intricate Widmanstätten patterns when etched, adding further visual appeal. Each specimen is unique, with variations in crystal size, distribution, and colour creating a wide range of natural patterns.

Studying PMG Pallasites provides valuable insight into the internal structure and differentiation of early planetary bodies, particularly the interaction between metallic cores and silicate mantles. They are among the few materials that sample this otherwise inaccessible boundary. For collectors, PMG Pallasites are highly sought after due to their rarity, beauty, and scientific importance. Each specimen represents a remarkable combination of metal and crystal formed in the depths of an ancient asteroid.