Moonstone

Definition and stakes

Portrait of Wilkie Collins Wilkie Collins,  The Moonstone (1868)

“ Observing that I was not yet satisfied, Betteredge shrewdly adverted to certain later events in the history of the Moonstone; and scattered both my theories to the wind at once and for ever.
“Let’s try it another way, sir,” he said. “Keep your own opinion, and see how far it will take you towards finding out the truth. If we are to believe the nightgown—which I don’t for one—you not only smeared off the paint from the door, without knowing it, but you also took the Diamond without knowing it.
”
Source: Gutenberg

Portrait of Wilkie Collins Wilkie Collins,  The Moonstone (1874)

“ On this occasion she was more particularly the centre-point towards which every body's eyes were directed; for (to my lady's secret annoyance) she wore her wonderful birthday present, which eclipsed all the rest—the Moonstone. It was without any setting when it had been placed in her hands; but that universal genius, Mr. Franklin, had contrived, with the help of his neat fingers and a little bit of silver wire, to fix it as a brooch in the bosom of her white dress. Every body wondered at the prodigious size and beauty of the Diamond, as a matter of course. ”
Source: Wikisource

Various,  Birds and Nature, Vol. 12 No. 2…

“ The gems known as moonstone and sunstone owe the play of colors which gives them their respective names to similar causes. These gems are generally some form of Feldspar, although any mineral giving a similar sheen of color might be included under them. The moonstone of commerce comes chiefly from Ceylon, where it occurs in large pieces the size of a fist in a clay resulting from the decomposition of a porphyritic rock. Pieces of these when polished exhibit the beautiful pale blue light coming from within which makes the stone prized as a gem. ”
Source: Gutenberg

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