2024年6月10日 · Fluorite belongs to the halide mineral group. Halide minerals contain negatively charged halogen ions, such as fluoride, chloride, bromide, or iodide.

2024年6月11日 · Halides: Minerals containing halogen ions, such as halite (salt) and fluorite. Sulfates: Minerals composed of sulfate ions, like gypsum and barite. ... Silicates are the mineral group that contain ...

2024年6月22日 · 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.

2024年6月16日 · 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 ...

2024年6月15日 · The most commonly known mineral that can be scratched with a fingernail is talc. ... 4FluoriteFluorine in fluorite prevents tooth decay.(Can be scratched by a steel pocket knife. Will scratch a ...

2024年6月19日 · Fluorite is a common mineral that forms in a variety of colors. Galena is a lead sulfide mineral with a metallic luster. Gypsum is a soft sulfate mineral commonly used in construction materials.

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2024年6月12日 · Garnet, a mineral with a hardness of 6.5-7.5 on the Mohs scale, can scratch materials with a hardness lower than itself, like glass, steel, and softer minerals such as calcite and fluorite ...

2024年6月11日 · Fluorite's streak is white because that is the true color of the powdered form of the mineral. The impurities that cause color or tint in a mineral specimen are so insignificant in relation to the ...

2024年6月16日 · What mineral scratches fluorite but not feldspar? Quartz scratches fluorite but not feldspar. Fluorite has a relative hardness of 4 on the Mohs scale, while feldspar has a hardness of 6-6.5.