Commonly Used As A Semi-Precious Gemstone And Closely Associated With The Town Of Whitby, What Name Is Given To The Hard Dark Brown Or Black Variety Of Lignite, Formed By Decaying Wood Under Extreme Pressure? This Gemstone Gives Its Name To A Glossy Shade Of Black.

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1. Commonly Used As A Semi-Precious Gemstone And Closely Associated With The Town Of Whitby, What Name Is Given To The Hard Dark Brown Or Black Variety Of Lignite, Formed By Decaying Wood Under Extreme Pressure? This Gemstone Gives Its Name To A Glossy Shade Of Black.