The Mohs scale of mineral hardness characterises the scratch resistance of various minerals by the ability of a harder material to scratch a softer one. This collection contains 9 minerals representing the scale of hardness: talc (H=1), gypsum (H=2), calcite (H=3), fluorite (H=4), apatite (H=5), orthoclase (H=6), quartz (H=7), topaz (H=8) and corundum (H=9).

We are manufacturers and suppliers of the Mohs Hardness Set (collection of 9), serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.