16.73ct Raw Natural Tanzanite Crystal purple Measurement: 48mm x 42mm x

Measurement: 48mm x 42mm x 25mm

I've noticed a shift in color depending on the lighting source

The spinel is brightly fluorescent under long wave UV light

but are not suitable for jewelry

a more transparent and polished look to show these natural color zones

16.73ct Raw Natural Tanzanite Crystal purple Measurement: 48mm x 42mm xThis Tanzanite Crystal Specimen comes direct from Tanzania. It has completely natural crystal faces and termination. This piece is a gem from our 2023 trip to Africa and it would be a stunning addition to any mineral or Tanzanite collection. Get a better look at this piece by viewing it in the 360 degree video! Locality: Merelani Hills, Tanzania Measurement: 20. 5mm x 14mm x 6. 8mm Weight: 16. 73ct Color: Natural Unheated