What is the Mohs hardness for Feldspar?

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Multiple Choice

What is the Mohs hardness for Feldspar?

Mohs hardness is a relative scale that ranks how easily a mineral can be scratched. Feldspar, a common rock-forming mineral, sits at about 6 on this scale. That means it can scratch materials around 5.5 in hardness (like glass) but can be scratched by harder minerals such as quartz (7). So the value for Feldspar is 6. The other numbers would place it softer or harder than where Feldspar actually sits.

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