Leucite in rock matrix. Polished slab of leucitite,a general name for volcanic rocks (grey) containing the mineral leucite (white). The leucite is in the form of large crystals (phenocrysts),though some of the ones seen here are a different mineral called augite. The volcanic rock consists of a mixture of mineral components like augite,titanite and magnetite. This sample is 8.5 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5319 px × 3658 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |