seb xaar
12/26/2018 8:52:03 AM |
very nice |
Anne Black
12/25/2018 1:56:07 PM |
A most unusual Christmas tree hiding in a forest of silicates! ;-) Thank you Bill. |
Bill Mikuska
12/25/2018 11:05:22 AM |
Bernd, the mottled appearance is probably due to the "stringy" mucilagenous looking silicates overlaying the ground. This can be readily seen in a transmitted + reflected raking light (both unpolarized) image.
An olympus BH2 microscope using both a nominal 10 power objective and photo eyepiece along with a Nikon camera an coupler produced the resulting magnified image. |
Bernd Pauli
12/25/2018 3:49:12 AM |
Merry Christmas everybody! Where does this mottled appearance come from? |
Rob Matson
12/25/2018 2:19:57 AM |
Now THAT'S a Christmas tree! |
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