yes, minerals can only be scratched by other minerals with hardness equal or greater.
thus this explains why a diamond can be cut and "polished" by dust or smaller diamonds
hardness.
A mineral is a naturally occurring solid formed throughgeological processes that has a characteristic chemical composition, a highly ordered atomic structure, and specific physical properties. Minerals in composition from pure elements and simple salts to very complex silicates with thousands of known forms The study of minerals is called mineralogy. A mineral is an element or chemical compound that is normally crystalline and that has been formed as a result of geological processes. Physical properties commonly used are: Crystal structure and habit: See the above discussion of crystal structure. A mineral may show good crystal habit or form, or it may be massive, granular or compact with only microscopically visible crystals. Hardness: the physical hardness of a mineral is usually measured according to the Mohs scale. This scale is relative and goes from 1 to 10. Minerals with a given Mohs hardness can scratch the surface of any mineral that has a lower hardness than itself.
It's wind.
Mineral spirits should evaporate rather quickly. Scoop out any residue manually.
No. It can vary from the visible color of the mineral and, since visible color of them ineral is not a reliable indicator of type, it is important to learn to use streak, (along with other factors), to correctly identify a mineral.
False. A mineral can only scratch itself or minerals equal in hardness or softer than it.
Halite can scratch gypsum, which has a Mohs hardness of 2.5 on the Mohs scale. Halite has a hardness of 2.5, so it can scratch any mineral with a hardness lower than 2.5.
According to the Mohs scale of hardness, Diamond has a hardness of 10 and Quartz has a hardness of 7. Any mineral with a hardness greater than 7 can scratch quartz and diamond can scratch any mineral with a hardness less than 10. Corundum (hardness of 9) and Topaz (hardness of 8) are two examples of minerals that can scratch quartz but not diamond.
True. In general, a mineral can scratch any mineral that is softer than itself according to Mohs Scale of Mineral Hardness. This means that a mineral with a higher number on the scale can scratch a mineral with a lower number.
Diamond is the hardest mineral and is the only one that can scratch corundum. but in my opinion corundum will scratch corundum any mineral of the same hardness will scratch the other !
Corundum can scratch all minerals except diamond, making it the second hardest mineral on the Mohs scale with a hardness of 9. Diamond, with a hardness of 10, is the only mineral that can scratch corundum.
Fluorite is unable to scratch feldspar, quartz, corundum, diamond, or any other mineral with a Mohs hardness greater than 4.
false a mineral can not scratch any mineral harder than itself
A peridot could scratch any mineral with a Mohs hardness of 6.5 or less. Click on the link below for information on the Mohs hardness scale.
Copper. Copper has a hardness of 2.5-3 on the Mohs scale, while a steel knife generally has a hardness of around 5.5 - 6.5. This means that a steel knife can scratch copper, but a copper penny cannot scratch a steel knife.
A diamond is the only material that cannot be scratched by any other than itself.
dimonds is hard enough to scratch anything.