Quote:
Originally Posted by Makko
David,
It is probably MICA, used as a semitranslucent window pane by the Aztecas. It is also a dielectric and, being sedimentary in creation, is easily split into panels.
Rgds.
Dave
|
Muscovite mica,used in capacitors. Muscovite is clear, or nearly so. Biotite is black, or nearly so.
muscovite is fairly immune to heat & was used as windows in stove & furnace doors.