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Eudidymite On Aegirine

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WND805120

Eudidymite On Aegirine

Rare Mineral

Description Tabs

Description
Locality: 
Mount Malosa, Zomba, Southern Region, Malawi
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 2.1 × 3.5 cm
Description

This is a superfine combo-specimen of rare beryllium-silicate eudidymite exposed on a large crystal of aegirine and accompanied by tapering crystals of the same species. The eudydimite features excellent defined tabular crystals with the typical monoclinic habit. They are lucent, sharp edged and mostly very good terminated. The tapering aegirine is mirror bright and perfect developed as well. Such superb and contrastful specimens are history at Malosa and consequently sought after.

Mineral Data
What's on the rock

Eudidymite

Formula: 
Na2Be2Si6O15·H2O
Strunz: 
9.DG.60
Hardness: 
6.0
Type Locality: 
Eudidymite locality, Lille Arøya (Midtre Arøy; Øvre Arøy; Övre-Arö), Langesundsfjorden, Larvik, Vestfold, Norway

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
Wendel Minerals

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