If you have read The Skull Chronicles, you'll know that the Skulls of Light come in a variety of mineral types. I thought it would be fun to run a short series of occasional posts highlighting those that have featured to date.
We kick off with Blue Obsidian, and Gal-Athiel, Voice of the Mother, from Book I, Lost Legacy.
You'll find Blue Obsidian in most crystal shops. Most is man-made, although this type is either coloured glass or created from slag, a by-product of the smelting process. Not that this should put you off as it still has powerful healing and metaphysical properties.
Natural Blue Obsidian, however, is a rare treasure. Like all Obsidians, it is a silica rich volcanic rock that gets its unusual soft aqua colour from either beryllium and/or aluminium sulphate.
Obsidian is an amorphous rock formed when molten material from beneath the Earth's surface (in other words, lava) cools so quickly that its atoms don't have time to rearrange themselves into a crystalline structure. It is classified as 'mineraloid' - not quite a true mineral.
How can you tell the natural from the man-made? As with most things, nature is not flawless and the natural kind is unlikely to be perfect. It may have variations on the depth of colour, inclusions or other marks.
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