Central in this close-up are a calcite (top) and gypsum ...
Description: Central in this close-up are a calcite (top) and gypsum (bottom). The calcite is from Faraday MIne, Bancroft, Hastings County, Ontario (30 x 21 x 12 cm)and the gypsum from Faraday mine, Bancroft, Ontario (17 x 21 x 9 cm).