-
Home
| Where
to Find
Rocks | Field
Equipment | Home
Tools | Organise
Your Collection | Storage
and Display | Field
Safety | Blog
Mineral Mica
Mineral mica is actually a group
of minerals.
It is the name of a group of minerals such as biotite, muscovite, lepidolite, zinnwaldite, phlogopite and clintonite.
Muscovite and biotite are the most common ones and also most prefect when it comes to the cleavage of mica sheets.
Muscovite
Mica
Muscovite is the light-coloured mica. It is most often grey, white or colourless, but can be pinkish, or have green, yellow, violet, red or brown shades. Its crystals are pseudohexagonal and tabular, and it has got the perfect mica cleavage - it splits easily into thin sheets.
Biotite Mica
Biotite is the mafic, dark-coloured equivalent. Like muscovite, it has tabular pseudohexagonal crystals, and the micaceous cleavage which helps it to break into thin sheets. It is most often dark brown, but can be black, dark green or reddish brown. Both are found in igneous, metamorphic, and sedimentary rocks.
Custom Search
What's New
About Us
About Using Content
PHOTOS
MAKE MONEY BUYING AND SELLING GOLD!
CRYSTAL HEALING
[?] Subscribe To This Site
Home | Site Map | Site Search | Site Policies | About Us | Contact Us
This site uses British English, which is the English we use in Australia.
Disclaimer:
Although
best efforts have been made to ensure that
all the information on this
site is correct,
collecting-rocks-and-minerals.com is not to be blamed should there be a
mistake.
Copyright notice:
All contents of this website are strictly protected
by the Law of
Copyright. What does that
mean?
Copyright 2010-2021 collecting-rocks-and-minerals.com. ALL RIGHTS RESERVED.