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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Goethite from
Castañar Cave, Castañar de Ibor, Cáceres, Extremadura, Spain


Locality type:Cave
Classification
Species:Goethite
Formula:Fe3+O(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Goethite data
Locality Data:Click here to view Castañar Cave, Castañar de Ibor, Cáceres, Extremadura, Spain
Data Identifiers
Mindat Occurrence Record ID:1488098
Long-form Identifier:1:3:1488098:0
GUID (UUID V4):0
Nearest other occurrences of Goethite
35.6km (22.1 miles) ⓘSierra de San Cristóbal, Logrosán, Cáceres, Extremadura, Spain
85.5km (53.1 miles) ⓘAldea Moret, Cáceres, Cáceres, Extremadura, Spain
86.9km (54.0 miles) ⓘTrasquilón, Cáceres, Cáceres, Extremadura, Spain
94.9km (58.9 miles) ⓘEl Lobo Mine, Quintana de la Serena, Badajoz, Extremadura, Spain
References
Alonso-Zarza, A. M., Martin-Perez, A., Martin-Garcia, R., Gil-Pena, I., Melendez, A., Martinez-Flores, E., ... & Munoz-Barco, P. (2011). Structural and host rock controls on the distribution, morphology and mineralogy of speleothems in the Castañar Cave (Spain). Geological Magazine, 148(2), 211-225.
 
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