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Fluorite is a relatively soft mineral with a Mohs hardness of 4, so it can be scratched by harder materials like quartz, topaz, and corundum. However, fluorite can scratch materials with a lower hardness, such as gypsum and calcite.
Yes, fluorite can scratch apatite. Fluorite is harder than apatite on the Mohs scale, which means it has the ability to scratch apatite.
No, fluorite is softer than a penny on the Mohs scale of mineral hardness. Fluorite ranks around 4 on the scale, while a penny ranks around 3.5, so fluorite will not scratch a penny.
Yes, fluorite is harder than calcite. Fluorite has a hardness of 4 on the Mohs scale, while calcite has a hardness of 3. This means that fluorite can scratch calcite, but calcite cannot scratch fluorite.
Quartz would be able to scratch fluorite, galena, and pyroxene as it is harder than these minerals on the Mohs scale of hardness.
Minerals that can scratch fluorite include quartz, topaz, corundum, and diamond. These minerals have a higher hardness on the Mohs scale, which means they are able to scratch fluorite.