The uniquely spectacular opal is the national gemstone of Australia. The internal structure of precious opal makes it diffract light. Depending on the conditions in which it formed, it can take on many colors. Precious opal ranges from clear through white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and black. Opals vary in optical density from opaque to semitransparent and show opalescence, a form of iridescence. Opal is formed from a solution of silicon dioxide and water. As water runs down through the earth, it picks up silica from sandstone, and carries this silica-rich solution into cracks and voids , caused by natural faults or decomposing fossils. As the water evaporates, it leaves behind a silica deposit. This cycle repeats over very long periods of time, and eventually opal is formed. Opals are made up from tiny uniformed spheres of transparent hard silica. It is the order of the spheres that separates the precious opal from the common opal. These tiny spheres also determine colours and patterns of opals. The size of the spheres has a bearing on the colour produced. Smaller spheres bring out the blues, larger spheres produce the reds. And more and more uniform the spheres are placed, the more intense, brilliant and defined the colour will be.
byceciliamok
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Cocktail Napkins you might like
Product Details
Cocktail Napkins
Design #7455157- Set of 4 cocktail napkins
- 10" x 10" (25 cm x 25 cm)
- Folded hem
- Topstitching thread color will be chosen at time of sewing from charcoal or white to best match the design
- These adorable cocktail napkins are a great way to bring a pop of color and character to parties and get-togethers. When folded, they serve as casual patterned coasters. All cocktail napkin sets are designed by independent artists, from around the world, and printed and sewn in the USA.
- Available in Linen Cotton Canvas
Durability of linen with the softness of cotton
- Estimated shrinkage: 3-6% in length and 0-1% in width.
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About the Design
About ceciliamok
Artist, designer, painter, lover of colour, storytelling and wonder. Please contact me for licensing and collaborations.
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