08923 -Top Rare NWA IMB Impact Melt Breccia Chondrite Meteorite Polished Section 75.0 g Echinoderms - Museum Grade They are not usual

They are not usual

Beautiful decorative plate made of polished rock with devonian fossils

the main corrosion product is antlerite

typical of the hatched ε-structure

Beautiful detailed specimen of this rare species of the family Acastidae

08923 -Top Rare NWA IMB Impact Melt Breccia Chondrite Meteorite Polished Section 75.0 g Echinoderms - Museum Grade They are not usualBeautiful example of a huge polished 120. 4 g section of this rare type of Chondrite Impact Melt Breccia. The authenticity of this specimen is guaranteed by the geologist Juan Avils Poblador, member of International Meteorite Collectors Association (IMCA 5681). Impact melt breccias are the result of a major shock between asteroids and parent bodies. They can be of a chondritic or an achondritic source, they range from simple shock veins up to complete