AMAZONITE

CLASS: Tectosilicate (Feldspar). . . . CHEMICAL FORMULA: K(AlSi3O8) . . . . CRYSTAL SYSTEM: Triclinic
CRYSTAL FORM: pinacoid; it can appear in prismatic, granular or massive formations.
COLOR: green.
Amazonite is the green variety of MICROCLINE.
PHYSICAL PROPERTIES: soft (6/6,5 Mohs), light (2,56 g/cm3), easily exfoliated in two orthogonal planes, translucent/opaque, vitreous luster, white powder, infusible and insoluble in acids, except hydrofluoric acid.
CURIOSITIES: it is related to calmness.