Specimen #1811
Name: Muscovite with Magnetite inclusions (Graphic Mica)
Type: Mineral
Locality: Madras, India
Favorite? N
Fluorescent? N
Size: 23 x 11 cm
Weight: 511
Acquired: 2009-12-15
Source: John Betts
Label: N
Comment: Thin sheet crystal of transparent muscovite mica with dark magnetite inclusions that follow the 60° orientation of the muscovite crystal, also known as graphic mica. Very difficult to photograph.
Minerals: Magnetite (Fe++Fe+++2O4) Muscovite (KAl2(Si3Al)O10(OH,F)2)
There is one picture on file
M01811-01.jpg: