Laforêtite, Galena
Montgros Mine, Pinols, Brioude, Haute-Loire, Auvergne-Rhône-Alpes, France
Very small inclusion of laforêtite (brown) in porous galena (light-grey), from the type locality! Reflected plane polarised light digital image in air. Width of image 75 μm.
Ore microscopy illuminates the darkness of the opaque “grey ugly” with true reflectance colors!
Ex Frank N. Keutsch collection.
G. Grundmann collection and ...
© Günter Grundmann, Detmold