MOHS® Test Kit

MOHS® Test Kit 

A Mohs® Test Kit is an incredibly useful tool for identifying mineral floors. It enables you to determine the nature of the floors.

The Mohs® hardness test kit allows you to quickly and effectively assess the surface hardness of concrete. By determining the hardness or scratch resistance of the surface, you can make informed choices about the diamonds to use and the hardness of the concrete to sand. A quick test can save you hundreds of diamonds and hours of work.

The Mohs scale was created in 1812 by Friedrich Mohs, a German mineralogist, to assess the hardness of minerals. Based on ten common minerals, it ranks them from the softest to the hardest. As an ordinal scale, hardness is determined by comparison: checking if one mineral can scratch another with a known hardness.

Here are the ten minerals on the Mohs scale:

This kit includes:

- A sturdy case
- Instructions and reference chart
- Four styluses, three test materials
- A hardness table

Each step is detailed in a guide provided with the kit.

The Mohs® hardness kit measures floor hardness on a scale from 1 to 10, where diamond, rated 10, is the hardest material, and talc, rated 1, is the softest. This measurement helps choose the right tools to use with the machine.

 Hardness  Mineral              Description   

1                 Talc                   Easily scratched by a fingernail  
2                 Gypsum            Scratched by a fingernail         
3                 Calcite              Scratched by a copper coin        
4                 Fluorite             Easily scratched by a knife       
5                 Apatite              Scratched by a knife              
6                Orthoclase         Scratched by a file, sand         
7                Quartz               Scratches glass                   
8                Topaz                Scratched by tungsten carbide     
9                Corundum         Scratched by silicon carbide      
10              Diamond           Scratched only by another diamond 

To give some examples:
- A human fingernail has a hardness of 2.2, so it can scratch gypsum but not calcite.
- A copper coin has a hardness of about 3.
- The bronze used for radiators has a hardness close to 4.
- Tooth enamel has a hardness of around 5.
- Regular steel has a hardness of 5.5, similar to window glass.
- Hardened steel reaches a hardness of 6.4.
- Silicon carbide, while harder than corundum, is still less hard than diamond, with a hardness of 9.5.

How to Use:

Start with the lowest numbered pick and progress until the concrete begins to scratch. The number of the pick that causes the scratch corresponds to the hardness of your concrete on the Mohs® scale.

- Dimensions: 20cm x 15cm
- Weight: 2.70 kg

- Non-contractual photo 📷
- Note: The photos of the pieces do not use the same scale.