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Hematite Augite Zircon Aegirine & Fluornatropyrochlore

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PAV912517

Hematite Augite Zircon Aegirine & Fluornatropyrochlore

Classic Locality

Description Tabs

Description
Locality: 
Lombadas, Ribeira Grande, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.3 × 1.4 cm
Description

Very nice specimen.
Hematite composed crystal with a black augite on it. Attached to the augite, in the base, a pink zircon. On the zircon we can see a very small orange fluornatropyrochlore crystal.
And finally, a small green aegirine attached to the augite.

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

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Zircon

Formula: 
ZrSiO4
Strunz: 
9.AD.30
Crystal System: 
Tetragonal
Hardness: 
7.5
Streak: 
White

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

Fluornatropyrochlore

Formula: 
(Na,REE,Ca)2Nb2(O,OH)6F
Hardness: 
0.0
Type Locality: 
Maoniuping Mine, Mianning Co., Liangshan Autonomous Prefecture, Sichuan Province, China