9 on the mohs scale
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Iodine is not recognized as a mineral, and therefore is not assigned a number on the Mohs Scale of mineral hardness.
It is about 2.5 in the Mohs Hardness Scale.
Kaolinite is a 2 on the Mohs Hardness Scale.
Pumice has a hardness of about 5 to 6 on the Mohs scale.
Pumice has a hardness of about 6 on the Mohs scale of mineral hardness.
It depends on the definition of 'hard' or 'soft'. The minerals composing pumice may be quite hard, but due to the thinness of its vesicular walls, it can comparatively easily be crushed or fractured.
the Mohs hardness scale
Diatomite has a hardness of around 5.5 on the Mohs scale of hardness.
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.
Talc is the softest mineral on the Mohs hardness scale, with a rating of 1. It is commonly used in cosmetics and as a lubricant.
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9 on the mohs scale
Quartz has a hardness of 7 on the Mohs scale, making it relatively hard and durable.
On the Mohs scale, 6.5 to 7.0.
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