Microwave Rubies

RJM Corbet

RJM Corbet

Deus Pascus Corvus
Joined
Mar 25, 2011
Messages
3,199
Location
Devon UK
Clever guy. Good channel:


Ruby is the red form of corundum, Mohs hardness 9 -- which can only be scratched by diamond, and which will scratch any other mineral except for diamond -- so the hardness of corundum is its main defining characteristic ...
 
Last edited:
RJM Corbet said:
Clever guy. Good channel:


Ruby is the red form of corundum, Mohs hardness 9 -- which can only be scratched by diamond, and which will scratch any other mineral except for diamond -- so the hardness of corundum is its main defining characteristic ...
Click to expand...

When I saw the title I thought you were posting something about Sainsbury's Jalfrezi or Madras curry meals :LOL:
 
You must log in or register to reply here.
Thread starter Similar threads Forum Replies Date
Astro Pen Double dish microwave meal tip Technology 7
M Microwave Query Technology 0
L Encode yourself as the microwave background and live for ever Book Search 4
M Plasmoid ball lightning in a microwave! Science & Nature 1

Similar threads


Back
Top