Online Encyclopedia


Online Encyclopedia
Originally appearing in Volume V13, Page 232 of the 1911 Encyclopedia Britannica.
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HELIOTROPE, in mineralogy, is the mineral commonly called " bloodstone " (q.v.), and sometimes termed girasol-a name applied also to fire-opal. The name, like those of many ancient names of minerals, seems to have had a fanciful origin. According to Pliny the stone was so called because when thrown into the water it turned the sun's light falling upon it into a reflection like that of blood.
End of Article: HELIOTROPE
HELIOSTAT (from Gr. rtXtor, the sun, vrares, fixed,...

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