Water Clear Quartz Crystal with Diamond Shaped Window and Rainbows, Minas Gerais, Brazil Natural Crystal richterite A black light will not

A black light will not work well on these specimens

Beautiful green apophyllite crystal with a layer of micro stilbite on a trimmed basalt matrix

New Jersey

but they also have an interesting formation process

Beautiful amethyst cluster with trimmed matrix

Water Clear Quartz Crystal with Diamond Shaped Window and Rainbows, Minas Gerais, Brazil Natural Crystal richterite A black light will notClear quartz crystal with a diamond shaped window, rainbows in that same area at the upper portion of crystal, and a reverse time link window. Size: 57 x 33 x 15 mm. 62 grams. From Minas Gerais, Brazil This one was hand picked. There are some minor dings along the edges.