Sphalerite
Rocks and Minerals Question Marathon
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Re: Rocks and Minerals Question Marathon
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon
Epidote? :?
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
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Re: Rocks and Minerals Question Marathon
Wadhk nailed it
"Genius is one per cent inspiration, ninety nine per cent perspiration" - Thomas Alva Edison
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Re: Rocks and Minerals Question Marathon

2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon
Chalk?
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
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Re: Rocks and Minerals Question Marathon
Correct!10manwire wrote:Chalk?
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon
[img]http://rminmarathon.webs.com/apps/photos/photo?photoid=153265361[/img]
http://rminmarathon.webs.com/apps/photo ... =153265361
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
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Re: Rocks and Minerals Question Marathon
Limonite.
2014 Events: Entomology, Materials Science, Rocks and Minerals, Scrambler
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Re: Rocks and Minerals Question Marathon
That's one of them, but I want both.
"If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away." ~ Henry David Thoreau
"We shall never know all the good that a simple smile can do." ~ Mother Teresa
"We shall never know all the good that a simple smile can do." ~ Mother Teresa