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bloodstone

[bluhd-stohn] /ˈblʌdˌstoʊn/
noun
1.
a greenish variety of chalcedony with small bloodlike spots of red jasper scattered through it.
Also called heliotrope.
Origin
1545-1555
1545-55; blood + stone
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for blood-stone

bloodstone

/ˈblʌdˌstəʊn/
noun
1.
a dark-green variety of chalcedony with red spots: used as a gemstone Also called heliotrope
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for blood-stone

bloodstone

dark-green variety of the silica mineral chalcedony that has nodules of bright-red jasper distributed throughout its mass. Polished sections therefore show red spots on a dark-green background, and from the resemblance of these to drops of blood it derives its name. Bloodstone was greatly prized in the Middle Ages and was used in sculptures representing flagellation and martyrdom; it later became of small importance. Notable occurrences include the Kathiawar Peninsula, India. Its physical properties are those of quartz (see silica mineral [table] ).

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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