1.4" Aegirine and Smoky Quartz Crystals with Feldspar - Malawi

Aegirine and Smoky Quartz Crystals with Feldspar - Malawi #330861

This is a 1.4" wide association of smoky quartz crystals with black aegirine crystals and white feldspar. This mineral cluster was collected from the Southern region of Malawi, Africa.

It has been mounted to an acrylic display base with mineral tack.

Aegirine is a sodium iron silicate with the chemical formula NaFeSi2O6. It is a member of the pyroxene group and it shares the same crystal structure as augite, but a different chemical composition. It typically forms long, slender crystals that can bear reddish-black, brown, black or greenish colorations.

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