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Bead of the Week

red agateJust perfect for your Halloween creations -- these Red Agate Evil Eye beads are of stone that was formed from layers of silica from volcanic cavities. Agate is named after the Achates River (now known as the Dirillo River) on the island of Sicily, Italy, whose upper waters were an ancient source of this gemstone. Each strand offered here has 16 round faceted beads, with colors ranging from red to amber, as shown. Each bead is approx. 10 mm. with an approx. 2 mm. hole. Each strand is $10, but for a limited time, take 10% off with the code HALLOWEEN at checkout.

 

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fire agate earringsThe term 'iridescence' refers to lustrous waves of color can be detected in some gemstones.  Other terms for iridescence include 'fire' and 'play of color'.  This rainbow-like effect is the result of cracks or layers within the stone that change the way it refracts light when it is viewed from different angles.  An 'iridescent finish' is an artificial form of this; the treatment of applying a rainbow-metallic finish is also referred to as 'iris' or 'AB finish'.  The 'AB' here is an abbreviation for 'aurora borealis' -- a rainbow finish that can be applied to virtually any color or type of bead.  The aurora borealis, also called the northern lights, is the phenomenon of shimmering colored lights that appear in some locales -- a most incredible sight to behold.  In beads, this 'shimmer-effect' is created by adding a very thin coat of metal.  One stone with natural irridescence (in my view, the most precious and what Shannon and I seek in gemstones) is the fire agate, shown here as featured on Etsy.com by '5andUnder'.

 

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