Perovskite stone is found in "Russia" / "Italy" / "Germany" / "Brazil" / "Colombia" and "Canada",

It is characterized by physical and chemical properties, including:

Physical properties

• The shape is false cubic
• The group igneous rocks / oxides
  
• Scratching is colorless / gray
• Hardness 5.5
• Color is black / brown / yellow / orange
• Not radioactive
• Transparent to opaque
• Sparkle metallic / diamond

Chemical properties

• Refractive index 2.3 / 2.34
• Density 4
• Pseudo-cubic / triple / hexagonal crystal system
• The chemical formula is calcium oxide