White Coral and Green Quartz Necklace
$19.95 exc. GST
|White coral & green quartz set in Sterling Silver overlay.
Coral is believed to be one of the oldest forms of gemstone jewellery, with some pieces dating back as far as 23,000BC. The Romans believed that Coral had magical and medicinal properties and many Roman children would wear Coral around their neck to protect them from danger. Essentially, Coral is calcified skeletons of sea creatures that grow in tree-like formations. Most Coral used for the production of jewellery is from the Mediterranean Sea or from the Pacific Ocean near Japan and Taiwan.
The word “quartz” is derived from the German word “Quarz” and its Middle High German ancestor “twarc”, which probably originated in Slavic, cf. Czech tvrdý (“hard”), Polish twardy (“hard”), Serbian and Croatian tvrd (“hard”). The Ancient Greeks referred to quartz as κρύσταλλος (krustallos) derived from the Ancient Greek κρύος (kruos) meaning “icy cold”, because some philosophers (including Theophrastus) apparently believed the mineral to be a form of supercooled ice. Today, the term rock crystal is sometimes used as an alternative name for the purest form of quartz.
Quartz is the most common material identified as the mystical substance maban in Australian Aboriginal mythology. It is found regularly in passage tomb cemeteries in Europe in a burial context, such as Newgrange or Carrowmore in Ireland. The Irish word for quartz is grianchloch, which means ‘sunstone’. Quartz was also used in Prehistoric Ireland, as well as many other countries, for stone tools; both vein quartz and rock crystal were knapped as part of the lithic technology of the prehistoric peoples.
In the 17th century, Nicolas Steno’s study of quartz paved the way for modern crystallography. He discovered that regardless of a quartz crystal’s size or shape, its long prism faces always joined at a perfect 60° angle. Quartz’s piezoelectric properties were discovered by Jacques and Pierre Curie in 1880. Quartz crystals have piezoelectric properties; they develop an electric potential upon the application of mechanical stress. An early use of this property of quartz crystals was in phonograph pickups. One of the most common piezoelectric uses of quartz today is as a crystal oscillator.
The metal is sterling silver overlay. Silver overlay is a uses a process of adding a thick layer of silver over the base metal and is more durable and more attractive than silver plated products. It has the appearance of solid sterling at a reduced cost but will far out last plated products.
Weight: 49 Gms