Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Quartz Gwindel from
Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland


Locality type:Tunnel
Classification
Species:Quartz var: Quartz Gwindel
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz Gwindel data
Locality Data:Click here to view Pfaffensprung-Amsteg water tunnel, Amsteg power station, Amsteg, Reuss Valley, Uri, Switzerland
Data Identifiers
Mindat Occurrence Record ID:1649397
Long-form Identifier:1:3:1649397:3
GUID (UUID V4):0
References
Müller, Bruno, Reith, Patrick (2013) Uri : Kristalle aus dem Kanton Uri, Schweiz. Extralapis 44. Christian Weise
 
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