Lawsonite

Lawsonite is a rare mineral, and is a variant of feldspar.  It is named after Andrew Cowper Lawson (1861-1952), a professor of geology at the University of California at Berkeley. The Bay Area of California is the location and primary region of this mineral, and this is where Lawson taught. Lawson's main claim to fame is his identification and naming of the San Andreas fault. -WET pic.-(2"x 3"/2.4 oz./6mm thk) no fractures