Rock Picture of the Week

This site is dedicated to the promotion and enjoyment of rockhounding which includes rock, mineral, and fossil hunting, collecting, and their related activities. Each week I will post a new subject related picture and description.
Due mainly to the scarcity of quality material to photograph

 I will be reducing the number of posts to twice a month.

Please feel free to browse previously posted specimens

in my archives.

The picture for the 1st half of September is      Selenite


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Photo by Jim Bryan
From the private collection of Mike & Chris Whittier of Rocks in a Hard Place.

Selenite (CaSO4-2H2O) is often precipitated out of mineral rich water. This specimen came from the Giant Crystal Cave in the Niaca Mine, Mexico. This cave has the world's most spectacular Selenite crystals, with crystal faces more than a yard wide and 10 yards long. The cave appears like a scene right out of a science fiction movie.
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If you have a picture that you would like to see posted or have a comment

You can contact me at host@rockpow.com

Please do not send a picture before contacting me.

All pictures on this website are to be considered as copyrighted material. You have permission to use them in any non-profit situation as long as you include the photographer's name along with the photo. Any other use requires written permission from host@rockpow.com

Hi-res copies of the photos are available from host@rockpow.com

All background photos by Jim Bryan