Peridot

Definition and stakes

Portrait of Frederick William Rudler Frederick William Rudler,  1911 Encyclopædia Britannica (1911)

“ It is generally held that the mineral now called topaz was unknown to ancient and medieval writers, and that their τοπάζιον was our peridot. Such was probably the Hebrew pitdah, translated topaz in the Old Testament. Dr G. F. Kunz has suggested that the peridots of modern trade are largely derived from old jewelry. The famous shrine of the Three Kings in Cologne Cathedral contains a large peridot, which has commonly been regarded as an emerald. It is notable that pebbles of transparent olivine, fit for cutting, are found in the United States in Montana, Arizona and New Mexico ”
Source: Wikisource

Louis Tracy,  Flower of the Gorse

“ Ingersoll turned to Tollemache. "Lorry," he said, "oblige me by taking our talkative friend to his house. He will be glad of it in the morning."
So, protesting loudly that some people made a lot of fuss about nothing, Peridot vanished with a shattered halo. But the mischief had been done. Next day all Pont Aven would be discussing Mrs. Carmac's strange delusion. In the view of the one man who knew the whole truth, it was the beginning of the end.
CHAPTER VI
A LULL Peridot lived on the Toulifot, a steep and rocky road that once upon a time was Pont Aven's main avenue to the interior of France.
”
Source: Gutenberg

George Frederick Herbert Smith,  Gem-Stones and Their Distinctive Characters

“ The true olivine must not be confused with the jewellers’ ‘olivine,’ which is a green garnet from the Ural Mountains (p. 217) . Peridot is comparatively soft, the hardness varying from 61⁄2 to 7 on Mohs’s scale, and is suitable only for articles which are not likely to be scratched; the polish of a peridot worn in a ring would soon deteriorate. The choicest stones are in colour a lovely bottle-green (Plate XXIX, Fig. 2) of various226 depths; the olive-green stones (Plate XXIX, Fig. 3) cannot compare with their sisters in attractiveness. ”
Source: Gutenberg

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