Specimen Number29-9-003Alternate NumberY17-3CommentsFine-grained intermediate dike next to Dolores vein. Predominantly plagioclase + hornblende, with minor magnetite + hematite. See photomicrograph below.In Teaching CollectionNoMineral(s)plagioclasehornblendemagnetitehematiteRock NameandesiteDistrictYuraMineDolores, YuraDeposit TypeOrogenicThin SectionBox 8, slot 53Geo-Coords[1] Donated ByFrom the research collection of Dr. Paul Spry.