The Al-Atham stone (Kohl / Antimon) is found in "China" and "Isfahan",

It is characterized by the following chemical and physical properties:

Physical properties

• The nonmetallic shape
• The sulfide group
  
• The scratch is silver
• Hardness 3
• The color is bright silver
• dark
• The sparkle is silky lustrous
• The melting point is from 630 to 903 degrees

Chemical properties

• Density 6.6
• The crystal system is a three-angled hierarchy
• The chemical formula is antimony trioxide