Home > Pseudomorphs – March 3 > MS1516 Chamosite after Almandine

Chamosite after Almandine - Sold


These pseudomorphs consists of an iron rich chlorite group mineral, namely chamosite, which has replaced the iron aluminum garnet almandine. These form via retrograde processes following high grade regional metamorphism of a banded iron formation through garnet facies.

This specimen is essentially single crystal of chamosite after almandine, 3.0 by 2.0 by 1.8 cm. There is abit of attached matrix, which could possibly be removed, but that choice is left to the customer. The distortion of the original almandine crystal from equidimensional proportions stems from the regional metamorphic process, i.e. folding, that formed the original garnet crystal.