Minerals Containing Manganese

SPESSARTINE (Manganese Aluminum Silicate)
RHODOCHROSITE (Manganese Carbonate)

Amethyst Galleries'
Mineral Gallery
MINERALS

Groupings

Birthstones

Gemstones

By Name Framed
Unframed

By Class Carbonates
Elements
Halides
Oxides
Phosphates
Silicates
Sulfates
Sulfides

Fluorescent Minerals

Properties

Rocks

Search

View Cart

Books

Rockhound,
Webmaster,
SF Writer
& Futurist

Stephen D. Covey

Ramblings
On The Future
Of Humanity

is Steve's pro-humanity, pro-space, pro-future blog, and a forum to discuss his talks at the International Space Development Conference (sponsored by the National Space Society).

See Steve's video interview about asteroid capture at Moonandback.com:
Part 1-Part 2-Part 3

You can make a difference!

Help President Obama, NASA, and the people of Earth. See the
Apophis Challenge
for solutions to:
- Global Warming
- Global Energy
- Man in Space
- Preventing the next Extinction Level Event