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Ulugei, Dornogovi Aimag, Mongolia

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List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Opal	4.DA.10	SiO₂ · nH₂O
var: Wood Opal	4.DA.10	SiO₂ · nH₂O
Unclassified Minerals
'Petrified Wood'	-

3 entries listed. 2 valid minerals.

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Current server date and time: 8th Dec 2011 21:56:36