Delessite
Encyclopedia
Delessite is a mineral variety, a magnesium
rich form of chamosite
which is a member of the chlorite group
. Delessite has the formula:
(Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8.
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole...
rich form of chamosite
Chamosite
Chamosite is the Fe2+end member of the chlorite group. A hydrous aluminium silicate of iron, which is produced in an environment of low to moderate grade of metamorphosed iron deposits, as gray or black crystals in oolitic iron ore. Like other chlorites, it is a product of the hydrothermal...
which is a member of the chlorite group
Chlorite group
The chlorites are a group of phyllosilicate minerals. Chlorites can be described by the following four endmembers based on their chemistry via substitution of the following four elements in the silicate lattice; Mg, Fe, Ni, and Mn....
. Delessite has the formula:
(Mg,Fe,Fe,Al)(Si,Al)4O10(O,OH)8.