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Neptunite & Rhabdophane-(Ce)

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CSL89489

Neptunite & Rhabdophane-(Ce)

Rare Mineral

Description Tabs

Description
Locality: 
Kvanefjeld, Ilímaussaq, Narsaq, Kujalleq, Greenland
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.3 × 1.9 cm
Description

Red brown neptunite with pale yellow, waxy rabdophane-(Ce). Nice alkaline-REE mineralization from Greenland.

Mineral Data
What's on the rock

Neptunite

Formula: 
Na2KLi(Fe2+,Mn2+)2Ti2(Si8O24)
Strunz: 
9.EH.05
Hardness: 
5.0 - 6.0
Colour: 
Black
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Rhabdophane-(Ce)

Formula: 
(Ce,La)(PO4)·H2O
Strunz: 
8.CJ.45
Crystal System: 
Hexagonal
Hardness: 
3.5
Type Locality: 
Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath, St Austell District, Cornwall, England, UK
Loranth Minerals

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