Book - Mineral Id Guide for Copper Country's Poor Rock Piles, Michigan

Mineral Id Guide for Copper Country's Poor Rock Piles, Michigan,

What to look for and identify copper, datolite, prehenite, epidot in road cuts and the poor rock piles all over Keweenaw, Michigan. Illustrated foldout pamphlet by Susan Robinson.  No shipping, single copy will be mailed in #10 envelope. 

by Susan Robinson

Foldout guide