I think it may be a form of Beryilium or Beryl.
Chris. Spratt
Victoria, BC
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: [meteorite-list] Mineral responsible for green color in
Moldavite?
I think it may be a form of Beryilium or Beryl.
Chris. Spratt
Victoria, BC
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I sit, corrected.
Chris Spratt
(Via my iPhone)
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Hello Chris, Elton and List,
A decreasing silica content seems to correlate with a gradual
change of color from yellow over green towards brown:
LDG - almost pure silica = 98% - yellowish or pale green
Moldavites = 78-85% - (light) bottle green
Average value of 25 bediasites = 71.89-81.31 -
Dear Mike, Chris, Elton, Bernd, and list,
At 05:09 10-12-10, MikeG wrote:
Can someone please tell me which mineral constituent gives Moldavite
it's green coloration? Is it iron?
There is some useful info about moldavite colors on p. 10 of this
20-page document:
Milan Trnka and Stanislav
Hi List,
Can someone please tell me which mineral constituent gives Moldavite
it's green coloration? Is it iron?
Best regards,
MikeG
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Mike Gilmer - Galactic Stone Ironworks Meteorites
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