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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Siderite from
Barroca Grande Mine, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Portugal


Locality type:Mine
Classification
Species:Siderite
Formula:FeCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz19
Muscovite10
Fluorapatite8
Pyrite6
Arsenopyrite5
Cassiterite3
Chalcopyrite3
Sphalerite3
Ferberite3
Calcite3
Tourmaline1
Data
Mineral Data:Click here to view Siderite data
Locality Data:Click here to view Barroca Grande Mine, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Portugal
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:212856
Long-form Identifier:1:3:212856:6
GUID (UUID V4):0
Nearest other occurrences of Siderite
17.8km (11.0 miles) Vale de Roxa Mine, Almaceda, Castelo Branco, Castelo Branco, Portugal
19.2km (12.0 miles) Borralhal Mine, União de Freguesias de Estreito e Vilar Barroco, Oleiros, Castelo Branco, Portugal
29.1km (18.1 miles) Senhora da Guia Mines, Liboreiro, Góis, Góis, Coimbra, Portugal
30.2km (18.8 miles) Góis Mining Field, Góis, Coimbra, Portugal
31.2km (19.4 miles) Vale da Carreira Mine (Vale das Gatas Mine), Sarzedas, Castelo Branco, Castelo Branco, Portugal
31.8km (19.8 miles) Barroca da Mina Mine (or Barroca da Santa Mine), Sarzedas, Castelo Branco, Castelo Branco, Portugal
32.6km (20.3 miles) Escádia Grande Mine, Alvares, Góis, Coimbra, Portugal
44.5km (27.7 miles) Sítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal
47.1km (29.3 miles) Ceife Mine (Palão Mine), Penamacor, Penamacor, Castelo Branco, Portugal
49.1km (30.5 miles) Bendada Mines, Bendada, Sabugal, Guarda, Portugal
References
 
and/or  
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