yellow cat agates polished tumbled rock

agate agates and background beautiful cat chalcedony cherts clear cluster crystal crystalline cut facets formation gem gemstone geology heavy isolated jasper jewel jewelry layer matrix mine mineral mineralogy natural nature orange ore pattern pebble pebbles polished precious pretty quartz red river rock rockhound rocks rough sample semiprecious shiny smooth specimen stone stones sulphate terminated texture treasure tumbled tumbler utah washed white yellow