Mica Photos       
Cochise College               
Photos of Minerals
Virtual Geology Museum      Hall of Minerals

Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu     copyright 2008-R.Weller 

 
muscovite  with inclusions
Muscovite is KAl₃Si₃O₁₀(OH)₂
Normally, a thin sheet of high grade muscovite mica is almost perfectly clear and transparent. 
However, sometimes impurities of rutile and various oxides of iron are present and create patterns
rivaling modern art.  Often the impurities align with crystallographic directions within the muscovite,
creating hexagonal network patterns.
 

mica
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.