adrian65
Cave Dweller
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,780
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Post by adrian65 on Jan 6, 2012 10:39:31 GMT -5
Hey, in that tree behind you, reflected in the cab, I think I spotted a little bird eating a caterpillar. ;D
Kidding, but just. Amazing color and shine.
Adrian
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Post by christopherl1234 on Jan 6, 2012 17:07:39 GMT -5
Lol Adrian. Thank you everyone for your kind comments. KK I think Montana agates look water worn and have those semi-circular marks on the outside. I am no expert on the subject, but I always thought that carnelian is just agate that has got its color from baking in the sun for eons.
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riverrock
fully equipped rock polisher
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Member since April 2010
Posts: 1,395
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Post by riverrock on Jan 6, 2012 17:38:34 GMT -5
i think i can see the colour of your eyes , what a shine.
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grayfingers
Cave Dweller
Member since November 2007
Posts: 4,575
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Post by grayfingers on Jan 6, 2012 18:14:20 GMT -5
"Having the same chemical make up as Agate, when Carnelian grades into brown it is known as Sard. When it contains bands of white, it is known as Sardonyx. In addition, some very dark brown Carnelian can be classified as Jasper. The distinction between these is very fine and relies more on visual appearance than scientific analysis. As a result, it is very possible that one man's Carnelian may be another man's Sard, Agate or Jasper. Chemically, Carnelian is composed of Silicon Dioxide, SiO2, and gets its red color from Hematite (Iron-Oxide, FeO2) impurities. Occurring in the cavities of many forms of rock, Carnelian most often develops from the silica-rich soils which solidified at low temperatures. It typically forms in nodules, cone-shaped masses or groups of stalactites which radiate outward from a central axis."
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