The determination of the hardness of a mineral can be an important step toward its identification. Over a century ago, Friedrich Mohs made up a scale of hardness which is sometimes referred to as Mohs' scale. This scale is still in use today, and this kit contains the minerals necessary to test other rocks.    More details . . .

Detailed Product Description

The determination of the hardness of a mineral can be an important step toward its identification. Over a century ago, Friedrich Mohs made up a scale of hardness which is sometimes referred to as Mohs' scale. This scale is still in use today, and this kit contains the minerals necessary to test other rocks.

Minerals
• talc
• gypsum
• calcite
• fluorite
• apatite-triphylite
• feldspar
• quartz
• beryl-topaz
• corundum

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