L Roebuck
Technical Support
Caving
^V^ Just a caver
Posts: 2,023
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Post by L Roebuck on Jun 26, 2007 17:17:14 GMT -5
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Brian Roebuck
Site Admin
Caver
Caving - the one activity that really brings you to your knees!
Posts: 2,732
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Post by Brian Roebuck on Jun 26, 2007 19:27:15 GMT -5
Nice Mineral Online link! Many cavers will benefit from this link. Good find!
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Post by Sharon Faulkner on Jul 16, 2007 16:36:58 GMT -5
Good links Lynn! I have the Discovery Channel handbook, "Rocks & Minerals", that I've used for years. I got it years ago when I was finding a lot of geodes and fossils (outside of caves). The book has been a handy guide to have on hand.
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Post by Azurerana on Jul 17, 2007 20:57:27 GMT -5
While each ID is fairly comprehensive, the selection of minerals is rather eclectic, and is not very good for the average person with a rock in his/her hand. I wonder what criteria they used? There are about 4000 minerals, known, and about half of these listed fall into the 'rare' category. (Based on 40 years of seeing minerals in the wild, in museums, and at rock shows.)
Beware of using this site unless you are a mineralogist. You are liable to ID a common stone with an uncommon habit or characteristic as something very rare indeed.
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