Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Opal-CT from
LGV construction site (railroad), Le Pertre, Fougères-Vitré, Ille-et-Vilaine, Brittany, France


00706260017368490716368.jpg
Opal-CT

LGV construction site, Le Pertre, Fougères-Vitré, Ille-et-Vilaine, Brittany, France
00706260017368490716368.jpg
Opal-CT

LGV construction site, Le Pertre, Fougères-Vitré, Ille-et-Vilaine, Brittany, France
01052150017272335753734.jpg
Opal-CT

LGV construction site, Le Pertre, Fougères-Vitré, Ille-et-Vilaine, Brittany, France
Locality type:Construction Site
Classification
Species:Opal var: Opal-CT
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-CT data
Locality Data:Click here to view LGV construction site (railroad), Le Pertre, Fougères-Vitré, Ille-et-Vilaine, Brittany, France
Data Identifiers
Mindat Occurrence Record ID:955376
Long-form Identifier:1:3:955376:7
GUID (UUID V4):0
References
Brunet, John (2016) Minéralogie du Massif du Pertre Ille-et-Volaine [Mineralogy of the Pertre Massif, Ille-et-Vilaine]. Le Règne Minéral, 22 (127). 5-18
 
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