The Santa Monica and San Gabriel mountains formed millions of years ago. Within both of them lies a fascinating world of rocks, gemstones, crystals and minerals. Here's how to start identifying them.
Identifying a mineral might sound straightforward: Analyze its chemistry, compare it to known minerals and voilà. But for geologists, this process can be a time-consuming puzzle requiring specialized ...
Major Funding by the Laura Moore Cunningham Foundation and Idaho National Laboratory. Additional Funding by the Friends of Idaho Public Television and the Corporation for Public Broadcasting. Science ...
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