Re: Diamond question
- From: "Y.Porat" <y.y.porat@xxxxxxxxx>
- Date: Sat, 12 Apr 2008 00:44:31 -0700 (PDT)
On Apr 11, 6:15 pm, Helmut Wabnig <hwabnig@ .- --- -. dot .- t> wrote:
On Fri, 11 Apr 2008 10:04:18 -0500, Front Office
<armistead_...@xxxxxxxxxxx> wrote:
Does anyone out there know when, and by
whom, it was determined that diamonds
consist of carbon?
thanks for any help.
Meyers Konversationslexikon von 1888 has this information
(Kohlenstoff)
Diamond had been considered beeing a kind of rock crystal quartz,
until Averami and Targioni demonstrated it's combustibility by placing
it in the focus of a large collecting mirror, and Lavoisier 1773
demonstrated the formation of carbonic acid from burning diamonds.
Mackenzie 1800 found that diamond yields the exact equal weight
of carbonic acid as coal or graphite, the latter often being mistaken
for molybdenite, until Scheele 1799 recognized it's real nature.
The first artificial diamond was made by Ballantyne Hannay 1880
in Glasgow.
w.
----------------
in my old book
it was a French scientist called 'Moison' ????
(by locking carbon inside hot iron and then cooling it bottom line
inserting a huge pressure on the Carbon
and that is (in principle !) how it is created in nature
sorry my French spelling
(now someone will demand from me to spell French
correctly as well
btw
there is s ay
success has many fathers.......
failure is an orphan !! (:-)
ATB
Y.Porat
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