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Visiting the Serpentine Prairie
Alameda County, California
May 2011

The Serpentine Prairie gets its name from the native rock in the area, an unusual blue serpentine. I usually think of serpentine as being a blue-green or jade green stone, but this variety comes in a real "denim blue jean" color.

The gentleman in this picture is my husband Andrew, our Household Geologist.

Comments on this photo:
	May 12 2011 05:35 GMT MargNZ Great capture of the man who knows about these things ... nice matching colours Fleur :)
	May 12 2011 12:47 GMT senna3 Excellent portrait!
	May 12 2011 13:55 GMT larrybenedict Interesting. ask Andrew for me--what makes the rock blue? I'm guessing the presence of copper ore. Is Andrew really a geologist?
	May 12 2011 16:09 GMT Annamaria Nice portrait of your husband, Fleur...;-))
	May 12 2011 16:55 GMT alden PRO The blue is from the mineral glaucophane, a sodium amphibole that forms at high pressures in former seafloor rocks.
	May 13 2011 02:38 GMT larrybenedict Thanks Alden. Sounds like some ambiguous sodium silicate then...no copper. Maybe a little Iron and Magnesium thrown in for good measure. :-)
	May 14 2011 02:26 GMT iyerhari great details!
	May 14 2011 07:28 GMT marijke06 well equiped with mobile-phones :)
	May 15 2011 14:41 GMT will A good guy to have along on any field trip photo shoot..:)
	May 15 2011 17:17 GMT charlie26 Nice entry Fleur. Interesting text.

FT1

Fhelsing's Fotothing

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