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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Rittmannite from
Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


07815510017366507619477.png
Rittmannite

Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
07815510017366507619477.png
Rittmannite

Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
00272670017272007851305.png
Rittmannite

Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
Locality type:Mine
Classification
Species:Rittmannite
Formula:{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2O
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Data
Mineral Data:Click here to view Rittmannite data
Locality Data:Click here to view Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:915894
Long-form Identifier:1:3:915894:8
GUID (UUID V4):0
Nearest other occurrences of Rittmannite
1.1km (0.7 miles) ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.4km (2.7 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
28.1km (17.5 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
48.2km (29.9 miles) ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal
48.2km (29.9 miles) ⓘFonte da Cal Mine, Bendada Mines, Bendada, Sabugal, Guarda, Portugal
References
Alves, Pedro (n.d.) Personal communication.
 
and/or  
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