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Senaite Aeschynite-(Y) & Synchysite-(Ce)

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SER769454

Senaite Aeschynite-(Y) & Synchysite-(Ce)

Description Tabs

Description
Locality: 
Monte Cervandone Area, Devero Alp, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4 × 2.1 cm
Description

two black , lustrous senaite crystals with some tiny red aeschynite crystals and an orange synchysite

Mineral Data
What's on the rock

Senaite

Formula: 
Pb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
Strunz: 
4.CC.40
Hardness: 
6.0 - 6.5
Type Locality: 
Datas (former Dattas), Minas Gerais, Brazil

Aeschynite-(Y)

Formula: 
(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Strunz: 
4.DF.05
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 6.0
Type Locality: 
Urstad Feldspar Mine, Hidra (Hitterø), Flekkefjord, Vest-Agder, Norway

Synchysite-(Ce)

Formula: 
Ca(Ce,La)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland