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Dalyite Aegirine & Ilmenite

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PAV947916

Dalyite Aegirine & Ilmenite

Classic Locality

Description Tabs

Description
Locality: 
Ribeira Grande, São Miguel, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2.1 × 2 cm
Description

Large and nice dalyite crystal associated to green aegirime and ilmenite.

From the Pumice quarry at Ribeira Grande.

Collected: 
2015
Boxed with Label
Mineral Data
What's on the rock

Dalyite

Formula: 
K2ZrSi6O15
Strunz: 
9.EA.25
Crystal System: 
Triclinic
Hardness: 
7.5
Type Locality: 
Green Mountain, Ascension Island, Saint Helena

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

Ilmenite

Formula: 
Fe2+TiO3
Strunz: 
4.CB.05
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
5.0 - 6.0
Type Locality: 
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...