Lesson for today
Talcum/Baby Powder is made from pulverising the mineral Talc, which is made up mainly of the elements magnesium, silicon, and oxygen.
Lesson over
Lesson over
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Domking 路 61-69, M
No not over
Talc is the reference point for lowest hardness - in Moh's scale of hardness Diamond is at 10, Corundum is 9 (which is Ruby,or Sapphire) and [b]Talc is 1[/b], meaning [i]the least hardness[/i]
Thank you 馃槂
Talc is the reference point for lowest hardness - in Moh's scale of hardness Diamond is at 10, Corundum is 9 (which is Ruby,or Sapphire) and [b]Talc is 1[/b], meaning [i]the least hardness[/i]
Thank you 馃槂