Définition | Micaschiste : qu'est-ce que c'est ? | Futura planète
Définition | Micaschiste : qu'est-ce que c'est ? | Futura planète
Nov 20, 2024
futura-sciences.com
This kyanite schist thin section contains the minerals garnet, biotite, kyanite, sericite, quartz and feldspar. In the Plane Polarized view, the garnet and kyanite are grey, biotite is brown, and the sericite, quartz and feldspar are white. In the Cross Polarized view, the sericite has a distinctive bright and finely ‘speckled’ appearance. The rock has a well-developed metamorphic foliation which is most clearly defined by trails of aligned biotite crystals. Crystals of kyanite are less abundant
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