Tuesday, 26 April 2011

Ruby ~

Ruby is a very hard gem, only exceeded in hardness by two others, one being diamond.  It is the red form of corundum, the other being sapphire.

Although the colour does vary the pieces shown below are a fair representation of what I've come across, and look more pink than red to me. 

The beads are a much finer quality than the disks, which are entirely opaque.  The degree of transparency found in ruby rings is in another class again.  However, I'm disappointed to read in the Wikipedia article linked to above that most gem-class ruby used in jewellery is artificially enhanced to improve its colour and transparency.

In the image below ruby can be seen in a metamorphic form of zoisite. When the two occur in this combination they are termed anyolite, which I've written about separately.

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