Craters of the Moon Nat Monument - Page 3 - Fiberglass RV


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Old 08-24-2012, 10:25 AM   #29
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And, as always, The Rockhounds Group goes for Teh Win!

http://www.minsocam.org/ammin/am58/am58_1048.pdf

From the abstract:

Quote:
The unusual color of the "Blue Dragon" lava is due to intense blue light being reflected from clusters of tiny titanian magnetite crystals, which, together with crystallites of plagioclase and olivine, are dispersed throughout an outer layer of clear brown glass. It is proposed that Fe'* -> Fe8*, and probably Fe'* -> Tia*, electron transfer processes are responsible for the blue color.
Looks like I was partially correct... the blue IS a glassy surface. However, it's NOT an iridescent sheen as with a film of oil. It's a reflection off of teensy-tiny (techy phrase, eh?) layer of magnetite crystals.

Ain't science grand?
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Old 08-24-2012, 11:04 AM   #30
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Gary, Thank you so much. Science is grand and your help in understanding equally wonderful. I guess I need to join the rockhound group.

Thank you. A little knowing smile is on my face.
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Old 08-24-2012, 11:17 AM   #31
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Easily done! Go to:

Rockhounds Info Page

GcB
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Old 08-24-2012, 11:38 AM   #32
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Originally Posted by ThomasE View Post
We visited Crater Lake a few years back in the pre-trailer days, very nice, but didn't camp there due to the amount of mosquitoes. We're in the SF bay area of California, so going to Calgary and Glacier, we'll likely go through Nevada and Idaho bypassing Oregon. Interested in recommendations for any must see spots in Nevada, Idaho, Montana, Alberta.
Thomas on your way to Alberta the Valley of the Fire State Park area is a nice camping area with lots of interesting areas to explore and Lake Mead is just down the road and the Hoover Dam can be done in a day trip from there as well. Have to say that for a State park the Valley of the Fire had the nicest/coolest camping spots I have stayed in.
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Old 08-24-2012, 06:41 PM   #33
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Lake Meades public campground is also a good deal $10/5 depending on your age, shaded and water view sites. Valley of Fire is well worth the trip as Carol stated.
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