Category
page 1Minerals in space group 53
purpurite
Purpurite is a manganese phosphate mineral with the formula MnPO4, with varying amounts of iron depending upon its source. It occurs in color ranges from brownish black via purple and violet to dark red.
janggunite
Janggunite is a rare manganese oxide mineral with the chemical formula .
perettiite-(Y)
Perettiite-(Y) is a complex silicate–borate mineral with the formula Y2Mn4FeSi2B8O24. It was first discovered in 2015 by Adolf Peretti of the Gemresearch Swisslab (GRS). It was found as inclusions in a phenakite crystal from Mogok, Myanmar.
fluorwavellite
Fluorwavellite is a rare phosphate mineral with formula Al3(PO4)2(OH)2F•5H2O. As suggested by its name, it is a fluorine-analogue of wavellite (hence its name), a rather common phosphate mineral. Chemically similar aluminium fluoride phosphate minerals include fluellite, kingite and mitryaevaite.