polished jaspilite on white background. close-up of a taconite jasper jaspillite stone from the krivoy rog deposit of

jaspilite sample object macro jaspillite gemstone mineral ornamental rock gem brown jasper stone natural collection tumbled specimen surface texture geological decorative pebble polished gemological white background close piece gemology small geology little material gemmology taconite quartzite ferruginous hematite structure red banded gemmological striped itabirite textured magnetite metamorphic semiprecious