To: saganite
‘Transparent aluminium’ previously only existed in science fiction Um, hello? Sapphire is transparent aluminum...
14 posted on
07/27/2009 11:27:55 AM PDT by
B-Chan
(Catholic. Texan. Monarchist. Any questions?)
To: B-Chan
"Sapphire is transparent aluminum... " I'm not a gemologist, but aren't precious gems just partially aluminum? Don't they bond with carbon in some kind of crystalline structure, refracting the light in varying ways to create the perception of color?
26 posted on
07/27/2009 11:35:04 AM PDT by
OldDeckHand
(No Socialized Medicine, No Way, No How, No Time)
To: B-Chan
Sapphire is transparent aluminum
Partially true. Aluminum with Oxygen. Al2O3. Single crystal. And you can have nearly tranparent polycrystalline Al2O3 too. And one more, AlON is Aluminum OxyNitride is transparent and like Sapphire, used for missle nose cones and armor.
27 posted on
07/27/2009 11:35:07 AM PDT by
blasater1960
( Dt 30, Ps 111, The Torah is perfect, attainable, now and forever)
To: B-Chan
So are emeralds and rubies.
50 posted on
07/27/2009 11:52:21 AM PDT by
Blood of Tyrants
(Obamacare: all the efficiency of the DMV and all the compassion of the IRS.)
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