Moh's Hardness Scale

Front

What is Moh's Hardness Scale?

Back

A scale that ranks minerals based on their ability to scratch one another, ranging from 1 (softest) to 10 (hardest).

Tags

NGSS.MS-ESS3-1

Front

Which mineral is the softest on Moh's Hardness Scale?

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Talc, which is rated as 1 on the scale.

Front

What mineral can scratch gypsum but is softer than topaz?

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Orthoclase, which has a hardness of 6.

Front

What is the hardness of quartz on Moh's Hardness Scale?

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Quartz has a hardness of 7.

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Which mineral can be scratched by quartz?

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Orthoclase, as it is softer than quartz.

Front

What is the hardness of topaz?

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Topaz has a hardness of 8 on Moh's Hardness Scale.

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What mineral is harder than topaz?

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Diamond, which has a hardness of 10.

Front

If a mineral is harder than gypsum and softer than topaz, what hardness range does it fall into?

Back

It falls into the hardness range of 5 to 7.

Front

Which mineral cannot be scratched by orthoclase?

Back

Topaz, as it is harder than orthoclase.

Front

What is the hardness of fluorite?

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Fluorite has a hardness of 4.