The hardness of a stone will determine whether it can easily be cut or it needs special drill, whether it can be made into jewellery for daily wear or can be used as a decor or Mineral Specimen
Desert Rose or Sand Rose is a crystal formation of gypsum
Honey Calcite
Rainbow Fluorite
Blue Apatite
Labradorite
Rock Crystal or Clear Quartz
Topaz of varying colors
Ruby in Fuchsite
Least hard in the Stone Hardness rating is Talc and the hardest that everyone knows is Diamond
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