Biotite Mica would fit this category as would Muscovite, native to Russia as the name implied. (Sheets) oif semi-transparent mica can be peeled right off. the mineral is useful in electrical condensers and also as a form of glass substitute that is heat-resistant, called Isinglass. it is neither Eisen-(Iron) nor Glass, but the name stuck.
Mica.
cleavage
micas such as muscovite, biotite
Mica forms flat prisms that readily brakes into flakes.
cleavage ( me is smart )
Mica.
cleavage
micas such as muscovite, biotite
Cleavage.
Mica forms flat prisms that readily brakes into flakes.
cleavage ( me is smart )
cleavage
Cleavage is the tendency to break along flat surfaces, and fracture is the tendency of a mineral to break into irregular pieces.
cleavage
Cleavage is the tendency of a mineral to break along flat surfaces and fracture is the tendency of a mineral to break into irregular pieces.
Cleavage is the tendency of a mineral to break along flat surfaces and fracture is the tendency of a mineral to break into irregular pieces.
Cleavage is the breaking of a mineral along flat surfaces. Fracture, on the hand is just the chipping or "fracture" of a mineral.Cleavage is the tendency to break along flat surfaces, and fracture is the tendency of a mineral to break into irregular pieces.