0,7 mm crystal – A very small number of similar crystals were found in the Loire alluvials. One of them has been analysed par Emmanuel Fritsch CNRS - Nantes, France. Exactly, it is a practically median term between the two poles of the solid solution clinoenstatite-clinoferrosilite : clinohypersthene. Crystals are twinned on {100}. - Photo and collection François Périnet
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Photo added: 5th Feb 2007