Nickel has a hardness of 4 on the Mohs scale.
Sulfur is a relatively soft mineral, with a hardness of 2 on the Mohs scale. It can be scratched by minerals with a higher hardness, such as calcite (3 on the Mohs scale) and fluorite (4 on the Mohs scale).
Coal, as an organic sedimentary rock, is not determined to have a hardness on the Mohs scale of mineral hardness.
Friedrich Mohs invented the Mohs hardness scale in 1812 to provide a simple method for mineral identification based on scratch resistance. The scale ranks minerals from 1 (talc, easily scratched) to 10 (diamond, hardest) to determine the relative hardness of different minerals. This scale is widely used in geology and material science for identifying and comparing the hardness of minerals and materials.
Phosphate minerals do not have a specific hardness on Mohs scale because the hardness of a mineral is determined by its crystal structure and chemical composition. Each phosphate mineral can have a different hardness depending on its specific properties. However, some common phosphate minerals like apatite typically have a hardness of around 5 on the Mohs scale.
Aluminum Oxide is roughly 8.5 - 9.0 on the hardness scale.
Pretty soft. Hardness is around 2.5 to 3, depending on the aluminum alloy.
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.
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
Topaz is number 8 on the Mohs scale.
The hardness is 3-4 on Mohs scale.
The Mohs scale compares the hardness of an object or substance.
Nickel has a hardness of 4 on the Mohs scale.
The softest material in the mohs scale is talc
Azurite has a hardness of 3.5 to 4 on the Mohs hardness scale.
Granite is not assigned a number on the Mohs scale of hardness. The Mohs scale is a measurement of the relative hardness of minerals. Because granite is a rock composed of a variety of minerals, only the individual minerals which compose it have a Mohs hardness.