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β-Lomonosovite Lamprophyllite & Aegirine

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β-Lomonosovite Lamprophyllite & Aegirine

ex collection Eduard Lehrieder
Rare Mineral

Description Tabs

Description
Locality: 
Khibiny Massif, Kola, Russian Federation
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.5 × 2.3 cm
Description

Yellow beta-lomonossovite with dark brownlamprophyllite and green, fibrous aegirine.
Comes with the original label.

Mineral Data
What's on the rock

β-Lomonosovite

Formula: 
Na4(H,Na)6Ti4(Si2O7)2(PO4)2O4
Hardness: 
0.0
Type Locality: 
Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Lamprophyllite

Formula: 
(Sr,K,Ba)2(Na,Ti,Mn2+,Fe3+)4Ti2(Si2O7)2O(O,OH,F)
Strunz: 
9.BE.25
Hardness: 
2.5
Colour: 
Yellow
Type Locality: 
Kola Peninsula, Murmanskaja Oblast', Northern 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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