set of various tumbled violet stones with names

agate alunite amethyst ametrine anyolite aventurine background blue bolivianite chalcedony charoite charoitite collage collection cordierite cut cutout description fluorite gem gemstone goldstone iolite isolated lace lepidolite mineral name natural out pink polished purple quartz rock sample sapphirine set sodalite stone tamerlan tamerlane tourmaline trystine tumbled tumbling ussingite various violet white zoisite