The Lapis Lazuli stone is found in "Canada" / "Afghanistan" / "Sweden" and "Austria",

It possesses the following chemical and physical properties:

Physical properties

• Prismatic
• Group minerals phosphate / arsenate
• White scratching
• Hardness 3.5 / 4
• The color is shades of / blue
• Not radioactive
• Translucent / Opaque
• The luster is dull resin

Chemical properties

• The refractive index is not penetrated by light
• Density 7
• Monoclinic / hierarchical crystal system
• The chemical formula is a mixture of minerals