An unheated purplish red ruby cabochon displays a white double-star phenomenon.
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Conspicuous bright brownish red crystals in ruby matrix are the first recorded observations of staurolite in corundum.
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A trip to a rural Liberian diamond mining community results in a newly discovered source of corundum.
Read MoreRuby is the most valuable variety of the corundum mineral species, which also includes sapphire.
Read MoreRuby is the most valuable variety of the corundum mineral species, which also includes sapphire
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Unusual needle-like inclusions in ruby were identified as sillimanite.
Read MoreThis bibliography has been prepared as an aid for people interested in ruby. It is a selection of citations to books and gemology journal articles that discuss ruby, including its identification, mining localities, synthetics, treatments, and history.
Read MoreRuby crystals from Southeast Asia with a fixed six-rayed star, similar in effect to trapiche emeralds from Colombia, are described.
Read MoreThe first substantiated identification of corundum (var. ruby) occurring as an inclusion in natural diamond is presented.
Read MoreAncient Indians called it “the king of precious stones.” Burmese warriors thought it made them invulnerable in battle. Medieval Europeans believed it cured hemorrhages and inflammatory diseases. The ruby has been prized since ancient times. And we still cherish it today.
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