The hardness is about 6.5 or 7.
the hardness of Topaz is 8 on moes hardness scale
B. Hardness
No. According to Mohs Hardness Scale, Quartz has a hardness of 7 while copper has a hardness of about 3. The higher number indicates a greater hardness.
Fluorite with a Mohs hardness of 4 would be scratched by quartz (with a hardness of 7). Both calcite (Mohs hardness 3) and talc (Mohs hardness 1) are softer than fluorite.
Aluminium has a Mohs hardness of 2.75. There are other hardness scales, such as Vickers and Brinell, and these numbers will differ. Each of these scales has a particular field of application.
Yes, you can go to the sauna even if you have silicons.
maybe but not sure
sillicon
Its 4A or 14
Solid.
1410°C
2.3260g-cm-3
No she din't
Solid.
breast implants
Silicons symbol is Si
It has never been stated if she does or doesn't.