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Ch. 6: Gemstone Color

Ch. 6: Gemstone Color Page of 118 Ch. 7: Hardness of Gemstones Text size:minus plus Restore normal size   Mail page  Print this page
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PRECIOUS STONES
the stone may be viewed, a great number of these fissures are certain to split up the light into prismatic colours causing brilliant iridescence. Similar fissures may often be seen with the naked eye on glass, especially if scorched or cooled too rapidly (chilled), and on the surface of clear spar and mica, their effects being of extreme interest, from a colour point of view, at least.
Ch. 6: Gemstone Color Page of 118 Ch. 7: Hardness of Gemstones
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