|Stunning Cacoxenite Crystals. Photo: Honorio Cocera-La Parra|
Formula: Fe3+24Al(PO4)17O6(OH) 12· 17(H2O)System: Hexagonal
Colour: Yellow to brownish ...
Hardness: 3 – 4
From: Benetusser, Valencia, Spain
Often times, it forms as fuzzy brownish yellow, brown, yellow, or gold radiated tufts or strands. It may also appear as reddish orange or greenish yellow. The cacoxenite is occasionally referred to cacoxene or cacoxitite.