© 1998 by Udo J.A. Behner
© 1998 by Udo J.A. Behner
colored with rhodamine B
| chemical formula | : KAl(SO4)2 · 12 H2O |
| crystal class | : cubic disdodekaedric |
| growing method | : slowly cooling of the aquaeous solution |
| growing time | : about 72 hours |
| crystal size | : app. 4 to 5 centimeters |
This pretty in pink also shows a medium strong orange
fluorescence under long wave ultraviolet light. The
"pink" alum is a quite popular sales item
This specimen is currently exhibited at the mineral museum in
Pforzheim.