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Manganoeudialyte Astrophyllite & Monazite-(Ce)

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SER165445

Manganoeudialyte Astrophyllite & Monazite-(Ce)

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.5 × 2.5 cm
Description

Some yellow crystals of manganeudyalite with pink monazite Ce, red pyrochlore and orange tufts of astrophyllite

Mineral Data
What's on the rock

Manganoeudialyte

Formula: 
Na14Ca6Mn3Zr3[Si26O72(OH)2](H2O,Cl,O,OH)6
Strunz: 
9.CO.10
Hardness: 
5.0 - 6.0
Streak: 
White
Type Locality: 
Pedra Balão outcrops, Poços de Caldas, Poços de Caldas alkaline complex, Minas Gerais, Brazil

Astrophyllite

Formula: 
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
Golden
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Monazite-(Ce)

Formula: 
(Ce,La,Nd,Th)(PO4)
Strunz: 
8.AD.50
Hardness: 
5.0 - 5.5
Type Locality: 
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...