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geology.com
The Most Difficult Rocks to Identify | Teaching Rock Identification
I'll bet one month's pay that you live near a location where rocks that would defy identification by a PhD Geologist can be found.
Rock Identification Pictures
How To Identify Rocks
Rock Identification
Minerals Crystals Stones
Gemstones Chart
Rock Tumbling
Geode Rocks
Beach Glass Crafts
Rock Hunting
Kathy Winget
33 followers
6 Comments