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Fergusonite-(Y) Zircon & Aegirine

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SER601428

Fergusonite-(Y) Zircon & Aegirine

Description Tabs

Description
Locality: 
Mount Malosa, Zomba, Southern Region, Malawi
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 3.1 cm
Description

A group of light brown , elongated crystals of fergusonite-Y and some brown zircon on a large crystal of aegirine and white orthoclase

Mineral Data
What's on the rock

Fergusonite-(Y)

Formula: 
YNbO4
Strunz: 
7.GA.05
Hardness: 
5.5 - 6.5
Type Locality: 
Kangeq, Sermersoq Island, Kujalleq, Greenland

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