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Fouchy pass, Haut-Rhin, Alsace, France

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List of minerals arranged by Dana 8th Edition classification
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Unclassified Minerals
'Limonite'-FeO(OH) · nH2O
var: Amethyst
var: Eisenkiesel-SiO2
var: Smoky Quartz-SiO2

6 entries listed. 5 valid minerals.
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