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Source:http://www.minsocam.org/msa/collectors_corner/article/mohs.htm
16 minerals, diamond being the hardest
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Relative hardness is the property of minerals that uses the Mohs scale for classification.
the mohs scale is the scale we use to identify minerals
"Andesite" is a rock type not a mineral (it is made of a mixture of minerals). Mohs scale relates the hardness of individual MINERALS not ROCK TYPES and thus your question can not be answered.
The Mohs scale is used to measure the hardness of minerals.
The Mohs scale measures the hardness of a mineral. Kaolinite, which is a clay mineral and part of the group of industrial minerals, has a Mohs scale value of 2-2.5.
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.
mohs
4
Relative hardness is the property of minerals that uses the Mohs scale for classification.
the mohs scale is the scale we use to identify minerals
"Andesite" is a rock type not a mineral (it is made of a mixture of minerals). Mohs scale relates the hardness of individual MINERALS not ROCK TYPES and thus your question can not be answered.
This scale is a chart of relative hardness of the various minerals
the mohs hardness scale
hardness
mohs
The Mohs Scale of Hardness determines the hardness of minerals by scratching them with commonly found objects. The minerals are assigned a number which corresponds to their hardness; higher numbers indicate higher hardness.
The Mohs scale is used to measure the hardness of minerals.