“Bright red, elongated cuprite crystals variety chalcotrichite in quartz. From the Tucson micro mounters room give away tables 2017. Rolf Luetcke specimen and photo.”
“Bright red, elongated cuprite crystals variety chalcotrichite in quartz. From the Tucson micro mounters room give away tables 2017. Rolf Luetcke specimen and photo.”
“Bright red, elongated cuprite crystals variety chalcotrichite with darker red, cubic cuprite crystals at lower right, in quartz. From the Tucson micro mounters room give away tables 2017. Rolf Luetcke specimen and photo.”