Sunday, 27 November 2011

Labradorite and spectrolite ~

Labradorite and spectrolite are both types of feldspar, a mineral formed from volcanic magma.  They are characterised by beautiful iridescence which catches the light and changes as it is moved.  It is fairly brittle.

The pendant displayed at the left has a glassy appearance and is very eye-catching. 

Below is a larger piece.  It's about the size to fit into the palm of your hand.

My understanding of the distinction between labradorite and spectrolite is slight.  The necklace shown here was sold to me as spectrolite.  The beads are nearly transparent.  The little gem at the centre is moonstone, also a form of feldspar, which I will place in a separate article. 


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