Natural Lazurite Specimen , buy Fine Ink Blue Color Lazurite Crystal With Golden Pyrite On Matrix , Natural Specimen 75 Gram

Natural Lazurite Specimen , Fine Ink Blue Color Lazurite Crystal With Golden buy Pyrite On Matrix , Natural Specimen 75 Gram

Weight :75 Gram
Dimension : 67*47*27 mm
Origin : Afghanistan
Color: Deep blue, azure, violet-blue, greenish blue
Luster: Vitreous
Refractive index: 1.502–1.522
Crystal habit: Crystals occur as dodecahedra, or rarely cubes; granular, disseminated, or massive
Crystal system: Isometric
Crystal class: Hextetrahedral (43m); H-M symbol: (4 3m)
Optical properties: Isotropic; anomalously anisotropic
Description:
Lazurite is a tectosilicate mineral with sulfate, sulfur and chloride with formula (Na, Ca)₈[(S, Cl, SO₄, OH)₂.