Chalcedony, Rio Grande do Sul, Brazil, 5.5 cm
Pretty gray chalcedony covered by a micro crystallization of brilliant quartz.This piece comes from the state of Rio Grande do Sul in Brazil.It measures 5.5 cm long, 4.2 cm wide and 2 cm thick.Its weight is 37 grams.Piece accompanied by a label dated 1987.Additional photos and online ordering on...