No, the hardness of a mineral does not affect its performance in the streak test. The streak test measures the color of the powdered form of a mineral when it is scratched against a streak plate, regardless of the mineral's hardness.
The streak of a mineral refers to the color of its powder when it is scratched on a streak plate. For marble, which is primarily composed of calcite or dolomite, the streak is typically white or colorless. However, the exact streak can vary slightly depending on the impurities present in the marble.
Granite is a hard igneous rock with a hardness of around 6-7 on the Mohs scale. Its streak is typically colorless, leaving no streak on a streak plate.
No, the hardness of a mineral does not affect its performance in the streak test. The streak test is determined by the color of the powder left behind when the mineral is scratched against a ceramic plate, not the hardness of the mineral itself.
Marble has a hardness of around 3-4 on the Mohs scale, which measures the hardness of minerals. This means that marble is a relatively soft stone compared to others.
No, the hardness of a mineral does not affect its performance in the streak test. The streak test measures the color of the powdered form of a mineral when it is scratched against a streak plate, regardless of the mineral's hardness.
Marble, being composed almost entirely of the mineral calcite, would have a white streak. The same colour as calcite's streak.
Marble, being composed almost entirely of the mineral calcite, would have a white streak. The same colour as calcite's streak.
Granite is a hard igneous rock with a hardness of around 6-7 on the Mohs scale. Its streak is typically colorless, leaving no streak on a streak plate.
No. Streak color is distinct of mineral hardness. They are separate properties.
Two minerals that do not leave a streak on a streak plate are quartz and fluorite. Both minerals have a hardness higher than that of the streak plate, so they will not leave a streak when rubbed against it.
Diamonds are the hardest substance on Moe's Hardness Scale and as such don't have a determined streak color (since streak is determined usually by a clay tablet of hardness ~3)
Diamond is the only mineral that can scratch glass but not leave a streak on a streak plate. Glass has a hardness of around 5.5 on the Mohs scale, while a streak plate typically has a hardness of around 6.5. Diamond, with a hardness of 10, is able to scratch glass but not the streak plate.
The rock left a coloured streak on the marble.
The rock left a colored streak on the marble.
No, the hardness of a mineral does not affect its performance in the streak test. The streak test is determined by the color of the powder left behind when the mineral is scratched against a ceramic plate, not the hardness of the mineral itself.
Marble, being composed almost entirely of the mineral calcite, would have a white streak. The same colour as calcite's streak.