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Seidite-(Ce)

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SKY847723

Seidite-(Ce)

Type Locality

Description Tabs

Description
Locality: 
Lovozero Massif, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.7 × 1 cm
Description

Pale yellow radial crystals of the REE mineral seidite-(Ce) from the TL in Lovozero.

It includes a copy of a signed label from A.Khomyakov. (see photo)

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Seidite-(Ce)

Formula: 
Na4(Ce,Sr)2Ti[(O,OH,F)5|Si8O18(OH)]·5H2O
Strunz: 
9.DJ.20
Crystal System: 
Monoclinic
Hardness: 
3.0 - 4.0
Type Locality: 
Yubileinaya pegmatite (Yubileinoye; Jubilejnaja), Karnasurt Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

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