© 1998 by Udo J.A. Behner
© 1998 by Udo J.A. Behner
doped with a small amount of potassium permanganate
| chemical formula | : K(ClO4, MnO4) |
| crystal class | : orthorhombic bipyramidal |
| growing method | : slowly cooling of the aquaeous solution |
| growing time | : app. 24 hours |
| crystal size | : up to 5 millimeters |
Potassium perchlorate / potassium permanganate is one of the
few good examples of a crystal with mixed anions.
This little specimen was grown from about 1,500 ml solution to
which only a few small crystal pieces of potassium permanganate
had been added.
As you may know the permanganate anion is one of the strongest
inorganic "dyes" known, even traces can produce a
slight pinkish hue.