Rocks and Minerals Question Marathon

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Re: Rocks and Minerals Question Marathon

Post by tornado guy » 

topaz, Al2SiO4(F,OH)2, hardness 8
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Re: Rocks and Minerals Question Marathon

Post by HannahD413 »

Nope
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Re: Rocks and Minerals Question Marathon

Post by PacificGoldenPlover » 

Beryl, hardness 8, formula Be3Al2(SiO3)6?
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

If not that then 
apatite Hardness 5, Formula Ca5(PO4)3(F,Cl,OH)
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Re: Rocks and Minerals Question Marathon

Post by HannahD413 »

Wadhk wrote:If not that then 
apatite Hardness 5, Formula Ca5(PO4)3(F,Cl,OH)
Wadhk has got it.
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

Image
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Re: Rocks and Minerals Question Marathon

Post by HannahD413 » 

Milky quartz
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Re: Rocks and Minerals Question Marathon

Post by Wadhk »

Yup. Your turn.
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Re: Rocks and Minerals Question Marathon

Post by HannahD413 » 

[img]http://skywalker.cochise.edu/wellerr/mineral/galena/6galena4837.JPG[/img]
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Re: Rocks and Minerals Question Marathon

Post by hexagonaria » 

galena
DFTBA
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