Aluminum Sulfate Information Page

Red Aluminum Sulfate Crystals on matrix (Poland)
Bright Pink to red coloring, beautiful naturally occurring dipyramidal/octahedral crystal formation of Aluminum Sulfate. This beautiful specimen comes to us from our friends in Poland. This specimen weighs 1.22oz (34 g) and measures 2.3 x 2 x 1 in (5.8 x 5.2 x 2.6 cm).

This sample has multiple crystals,some twinned. Slight damage to a few points, but still an excellent specimen. This crystal sample is natural and un-sealed, Aluminum Sulfate is a water soluble mineral and should be kept in a dry place or sealed. Aluminum Sulfate can be harmful to humans. Care should be taken to use gloves when handling or wash hands after handling. Aluminum sulfate is used in ponds and fountains to kill algae