Quartz has the value of 7 on the Mohs scale.
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Quartz has a hardness of 7 on the Mohs Scale, making it relatively hard and durable. It is harder than most other minerals commonly found in nature, including talc, gypsum, and calcite. However, it can still be scratched or damaged by harder materials like topaz, corundum, and diamond.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
Quartz has a hardness of 7 on the Mohs scale, making it relatively hard and durable.
Minerals that have a hardness of 7 on the Mohs scale include quartz, beryl (which includes emerald and aquamarine), and garnet. These minerals are relatively hard and can scratch materials with a lower hardness rating.
Friedrich Mohs' hardness scale is simply known as the Mohs Scale of Mineral Hardness.
The mineral hardness scale is called the Mohs scale of mineral hardness, named after German geologist Friedrich Mohs who created it in 1812.