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Fedorite With Charoite & Aegirine

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QRI812511

Fedorite With Charoite & Aegirine

Former collection Bonisoli (I)
Type Locality

Description Tabs

Description
Locality: 
Turii Massif, Turii Cape, Murmansk Oblast, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.1 × 7.8 × 1.7 cm
Weight: 
40.00gr
Description

Numerous rare fedorite specks in a matrix assemblage of pale purple charoite, associated to well-developed sprays of dark aegirine crystals - the typical alkaline paragenesis. Base sawn.

Very rich for the specie and quite contrastful. Turii alkaline massive is the type locality for fedorite.

From the legendary collection Bonisoli (I), with the collection number written on the specimen (no label).

Pasted Label
Mineral Data
What's on the rock

Fedorite

Formula: 
(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2·3.5H2O
Strunz: 
9.EE.80
Hardness: 
0.0
Type Locality: 
Turii alkaline Massif (Turiy massif), Turii Cape, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Charoite

Formula: 
(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4·~3H2O
Strunz: 
9.DG.92
Hardness: 
5.0 - 6.0
Type Locality: 
Murunskii Massif, Chara and Tokko Rivers Confluence, Aldan Shield, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway

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