Specimen Number30-1-004Alternate NumberY17-31CommentsCrumbly Feox + quartz. Presence of fresh fine-grained pyrite in Feox suggests two pyrite stages, a coarse-grained pre-Feox stage and a fine-grained post-Feox stage. See photomicrograph below.In Teaching CollectionNoMineral(s)Fe-oxquartzpyriteRock Namemineralized quartz veinDistrictYuraMineFortunaDeposit TypeOrogenicThin SectionBox 8, slot 70Geo-Coords[1] Donated ByFrom the research collection of Dr. Paul Spry.