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Topaz is a common mineral with a hardness of 8 on the Moh's hardness scale. This means it can scratch glass and cannot be scratched with a knife blade or masonry (steel) nail.

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15y ago
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14y ago

jasper,smokey quarts,rose quarts,agate,amethyst,milky quarts

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13y ago

Quartz has a Mohs hardness of 7.

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quartz

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quartz

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Q: What minerals have a hardness of 7 on the mohs scale?
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Related questions

If a mineral is a 6 on the mohs scale what can it be scracted by?

A mineral with a hardness of 6 on the Mohs scale can be scratched by anything harder than a 6, such as minerals with a hardness of 7 or higher. It will not be scratched by minerals with a hardness of 5 or lower.


What is the hardness of mica on mohs hardness scale?

Schist is a composite material made up of a mixture of several minerals, each of which have different mohs hardness. Schist is made mostly of quartz (mohs 7) and feldspar (mohs 6) but also includes minerals such as chlorite (mohs 2) and hornblende (mohs 5). Schist has no real mohs hardness, but a composite of its constituents of approximately 6.


How hard is andesite on the mohs hardness scale?

"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.


How hard is tourmaline on mohs scale?

Tourmaline has a hardness of 7-7.5 on the Mohs hardness scale.


What is the hardness of Flint according to the mohs scale of hardness?

flint is a type of quartz, so it has a hardness of about 7 on the mohs scale of hardness


What is the hardness of Quartz on the Mohs scale?

The hardness of quartz on the Mohs scale is seven and can scratch glass.


What is the Hardness of Andesitic on the Mohs scale of hardness?

7.0


What is the hardness of pegmatite?

7 in the mohs scale of hardness............=) -01-


What is the hardness of peridot in Mohs Hardness SCale?

6.5 to 7


What is the hardness of rose quartz?

On the Mohs scale, rose quartz has a hardness of 7.0. Rose quartz is a mineral found in different parts of the world, including Madagascar and India. The Mohs scale is used to measure a minerals' hardness or scratch resistance.


What is peridots hardness?

Peridots hardness on mohs scale is 6.5-7


what hardness of quartz?

According to the Mohs hardness scale, Quartz is assigned with the hardness 7.