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Pyrochlore Katophorite & Eudialyte

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SER167907

Pyrochlore Katophorite & Eudialyte

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 2.5 × 3.5 cm
Description

Numerous vugs featuring red pyrochlore, black katophorite and minor eudyalite group

Mineral Data
What's on the rock

Pyrochlore

Synonym Of: 

Pyrochlore Group

Formula: 
A2Nb2(O,OH)6Z
Strunz: 
4
Hardness: 
5 - 5.5
Group Parent: 
Pyrochlore Group

Katophorite

Variety Of: 

Katophorite Root Name

Formula: 
A(CaNa)(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Hardness: 
0.0

Eudialyte

Formula: 
Na15Ca6(Fe2+,Mn2+)3Zr3[Si25O73](O,OH,H2O)3(OH,Cl)2
Strunz: 
9.CO.10
Hardness: 
5.0 - 6.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, Greenland