A Geoscience Digital Image Library

TitleHexagonal flakes of biotite
DescriptionThese flakes of mica are the mineral biotite, K(Mg,Fe)3AlSi3O10(OH)2. They are about 8 cm across and show pseudoheagonal symmetry and perfect planar cleavage.
LocationCanada ▹ Ontario. Near Bancroft.
PhotographerDexter Perkins. 2000-11-29.
CollectionUniversity of North Dakota Mineralogy Collection.
Key wordsbiotite, cleavage, hexagonal, mica, Ontario, Canada
Tech details134 KB. Hand specimen. Provia E6 film, Canon A1 with macro lens, 1350dpi.
GeoDIL number5