Twinned augite crystals,polarised light micrograph. This mineral contains calcium,sodium,magnesium,iron and aluminium in a silicate matrix. Its crystals form in igneous rocks (black) such as potash-rich lavas. Augite is a member of the pyroxene group of rock-forming minerals. This cluster of crystals is around 8 millimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 3712 px × 4749 px |
Model Release : | Non requis |
Property Release : | Non requis |
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