Hyper best Rare. Dumortierite Quartz Crystal - 25.8 CT - 1 Piece Quartz Specimen. 18 x 12 x 16 MM. 9223

All natural formation, not artificial in any way.

Dumortierite-rich Quartzite!

Please disregard the item weight in the shipping section.

"Named to honor French paleontologist from Lyons, Eugene Dumortier. Dumortierite is somewhat uncommon, but has many localities including in France, Poland, the Czech Republic, the United States, Canada, Namibia, Madagascar, India, and additional minor localities. It occurs in aluminum-rich metamorphic rocks as disseminations and in veinlets cutting through schists, and in pegmatitic veins. Minerals associated with dumotierite include quartz, cordierite, kyanite, andalusite, sillimanite, muscovite, and rutile." - http://www.dakotamatrix.com/mineralpedia/5888/dumortierite

More on this kind of stone at: http://betweenarockandaheartyplace.blogspot.com/2015/02/quartz-with-dumortierite-inclusions.html

Origin uncertain, likely Bahia, near Vaca Morta Quarry, in Brazil. best