gloomywormwood:Petrography day. Basalt in thin section. 

gloomywormwood:Petrography day. Basalt in thin section. 
gloomywormwood:Petrography day. Basalt in thin section. 

gloomywormwood:Petrography day. Basalt in thin section.  -- source link


#geology#basalt#microscope#thin section#igneous#feldspa#plagioclase
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