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The ObsIndian stone boasts of an extensive history both as a gem as well as an effective substance for crafting cutting material and luxury items worldwide.

Written by EXPRESS FEATURES SERVICE | Published: February 16, 2009 3:26:15 am

The Obsidian stone comes from the heart of the earth when lava flows

The ObsIndian stone boasts of an extensive history both as a gem as well as an effective substance for crafting cutting material and luxury items worldwide. It is a Silicate of alumina potash,iron and lime. Formed when viscous lava cools rapidly,Obsidian is a glassy and lustrous mineral found when lava flows. Chiefly composed of silica,it carries various amounts of impurities that give it a multiplicity of colour and diverse patterns. Obsidian gets its name from the Roman ‘Obsius’,who in Pliny’s report,discovered the stone in Ethiopia. It is found in volcanically dynamic vicinities,like Hawaii,Japan,Italy and western US. The world’s largest Obsidian flow is located at Newberry Monument in Oregon. Obsidians may be opaque,translucent and even fairly transparent. Fire Obsidian is an ultra-rare variety from Oregon which has enchanting and extreme multi-coloured flashes in layers. Columbanite is grayish pink variety from Columbia. Banded Obsidian includes what we commonly enjoy as Onyx. Burns Green is a mossy green variety which is often successfully teamed with olive attires to create a subtle effect. Another famous variety of Obsidian comes in transparent to translucent nodules of brown,the Apache Tears. Snowflake aka flower pattern is grey with white flecks. Mahogany Obsidian is the reddish brown variety and looks stunning on all complexions. Peanut Obsidian has a grayish base with striking orange to reddish brown inclusions. The great objection to the stone is its softness,which makes it prone to easy injury hence store it individually and flaunt carefully. For most type of Obsidians,quality cutting is of utmost importance. Its polish should be flawless. Choose pleasing yet well-defined patterns. While purchasing transparent /translucent assortment,religiously use back-lit snap of the stone to judiciously recognize in cooperation the level of light play and if any,flaws.

(The writer is a city-based researcher specialising in jewellery art. Mail her at sameeraahaan02@gmail.com)

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