Natrolite

Natrolite natural mineral from Khibiny massif Kola Peninsula murmanskaja oblast Russia Size- 8.4cm x 2.1cm x 1.9cm Weight- 69g You will receive the item in the photo Natrolite is a distinctive Tectosilicate mineral belonging to the zeolite group. Crystal system- Orthorhombic Mineral class-silicates Rock formation- Natrolite is a secondary mineral that primarily forms within cavities,seams and veins of magic volcanic rocks,(such as the amygdaloidal cavities of basalt and phonolite). It also crystallizes as an alteration product of primary minerals like nepheline and sodalite within alkaline plutonic rocks like nepheline syenites. Hardness-5-5.5 on the MOHs scale