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November 15, 1998 Matrix's Second Visit

Lichens on dark rock -probably volcanic rock.
There is much for a mineral enthusiast to enjoy out here as well as others who enjoy a myriad of flora and fauna.
There is a great deal of evidence of ancient volcanic rock formations out here.
Lichens are a composite of certain alga and fungus that appear to be symbiotic. Some are brightly colored such as this bright green species.