Charring Auh5d ago

#MAGNESIUM ROCKS

ROXENE, #HORNBLENDE, AND #OLIVINE

BATE.

GENERALLY DARK COLORED

WITHOUT #PLAGIOCLASE

JessApr 24, 2025

https://www.reddit.com/r/geology/s/3N4BmrPDFT

Lava boat (boulder) flowing down volcano slope in the Canary Islands #incredible #geology #volcanoes #geoscience #basalt #CrustalRecycling #bowensreactionseries #olivine
#pyroxine #plagioclase #amphibole #biotite #AndThen

Video credit to @IcelandExplorer on youtube http://www.youtube.com/@IcelandExplorer

Charring AuhJan 3, 2025
#Albite is a plagioclase feldspar mineral. It is the sodium endmember of the #plagioclase solid solution series. It represents a plagioclase with less than 10% anorthite content. The pure albite endmember
berndandewegAug 23, 2023
Strange combination of #volcanic #rocks along the #Allier river (France). #olivine bearing #basalt (~1.8Ma) and large #plagioclase #crystals in #granites from the much older basement. Could never be formed contemporary.