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BLOODSTONE
, the popular name of the See also:mineral See also:heliotrope, which is a variety of dark See also:green See also:chalcedony or plasma, with See also:bright red spots, splashes and streaks
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The green See also:colour is due to a chloritic mineral; the red to See also:haematite
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Some coarse kinds are opaque, resembling in this respect See also:jasper, and some writers have sought to restrict the name "bloodstone" to green jasper, with red markings, thus making heliotrope a translucent and bloodstone an opaque See also: |
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