Synonym: Phyllosilicate mineral.
English: Leaf silicates; Sheet silicates.
Name: from Greek phyllon, leaf.
MineralogyMinerals, forming parallel sheets of silicate tetrahedra with Si2O5 or a 2:5 ratio.
The Nickel-Strunz classification is 09.E.
All phyllosilicate minerals are hydrated, with either water or hydroxyl groups attached.