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Difference between revisions of "Bloodstone"
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[[File:Bloodstones1.jpg|300px|thumb|Bloodstones held in a hand]] | [[File:Bloodstones1.jpg|300px|thumb|Bloodstones held in a hand]] | ||
The mineral aggregate '''bloodstone''', proper name '''heliotrope''' (from Ancient Greek ἥλιος (hḗlios) 'sun', and τρέπειν (trépein) 'to turn'), is a cryptocrystalline mixture of quartz that occurs mostly as jasper (opaque) or sometimes as chalcedony (translucent). The "classic" bloodstone is opaque green jasper with red inclusions of hematite. The red inclusions may resemble spots of blood, hence its name. | The mineral aggregate '''bloodstone''', proper name '''heliotrope''' (from Ancient Greek ἥλιος (hḗlios) 'sun', and τρέπειν (trépein) 'to turn'), is a cryptocrystalline mixture of [[quartz]] that occurs mostly as [[jasper]] (opaque) or sometimes as chalcedony (translucent). The "classic" bloodstone is opaque green jasper with red inclusions of hematite. The red inclusions may resemble spots of blood, hence its name. | ||
The name heliotrope derives from various ancient notions about the manner in which the mineral reflects light. Such notions are described, for example, by Pliny the Elder. | The name heliotrope derives from various ancient notions about the manner in which the mineral reflects light. Such notions are described, for example, by Pliny the Elder. | ||