Knebelite, named after Major von Knebel, is a mineral of a grey, red, brown, or green colour, and glistening luster. It is a silicate of iron and manganese.
Related terms:
Knebelite, named after Major von Knebel, is a mineral of a grey, red, brown, or green colour, and glistening luster. It is a silicate of iron and manganese.
Related terms: