Diamonds.
Diamonds are harder than chalk.
Diamonds manufactured from carbon (C) are diamonds. Cubic zirconia is a form of zirconium dioxide (ZrO2), which is a different mineral
A cubic meter of diamonds weighs approximately 3,500 kilograms (or about 7,700 pounds). This is based on the density of diamonds, which is around 3.5 grams per cubic centimeter. Therefore, if you have a full cubic meter of diamonds, it would be very heavy due to their high density.
Yes, diamonds can cut glass, because diamonds are harder than glass.
Yes
Diamonds aren't always sharper, but they can be manufactured in such a way. Diamonds are harder than steel.
Yes, diamonds are harder than quartz on the Mohs scale, so diamonds can scratch quartz.
Diamonds are the hardest mineral known. Metal refers to metallic materials, and there are many of them. In order to give a 'yes' or 'no' answer to your question, you must specify which metal. Always, however, diamonds are harder than any metal; the number of times harder, then depends on which metal is being compared to diamond in hardness.
No, diamonds are harder than coal. Diamonds are one of the hardest natural materials on Earth, while coal is relatively soft and brittle.
Your answer depends on the composition of the 'fake diamond' and the composition of glass. Each mineral has a rating on the Mohs Scale of hardness. The harder mineral will scratch the softer mineral.
No. Diamonds cut glass because diamonds are harder than glass. Quartz is not as hard as diamond.
cz means cubic zirconium... so the answer is NO