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Chrysoprasius, Chrysoprase
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CHRYSOPRASIUS.
91
position as the Prase, it differs greatly from that stone in outward appearance, by reason of its opacity and much more agreeable and more uniform tint of green, besides its greatly superior hardness.
Although antique works do not occur in our Chrysoprase —a necessary consequence from the fact that the only locality producing it lay without the limits of Roman enterprise—yet a mineral much resembling it, though with somewhat of a bluish cast, is said to be found sometimes set in old Egyptian jewelry alternately with bits of Lapis-lazuli. Intagli also are known upon this same substance, which has, on account of its colour and slight translucency, been mistaken occasionally for the Turquois. One in my pssession bears a most singular type, Barbelo, the androgynous " Mother of Creation " of the Phoenicians, with the appropriate attributes of the snail (salacity) and the butterfly (life). The substance may be defined as a blue Plasma ; it contains the peculiar black specks that characterise the species. This antique kind may with some probability be considered the cerulean Jaspis brought from the Thermodon.
Some such stone as this may have been the Omphax, reckoned by Theophrastus (30) amongst the commoner ring-stones. The word, primarily signifying an unripe grape, could only have applied to a gem equally opaque and green, with a certain bluish bloom upon it. It is strange, indeed, that no Greek intagli are now extant in any gem at all answering to this description, for Theophrastus puts it in the same list as the Carbuncle, Sard, and Amethyst (Garnet), whence one would conclude it to have then been equally in general use. Furlanus understands by it an inferior sort of Beryl, De Laet says " de quo nihil certi possum affirmare." A recent writer is certain that our pale, uniformly-tinted Prase is signified : but the trans-
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Table Of Contents
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King. Gems Or Decorative Stones.
Contents & Preface
Achates, Agate
Aetites, Eagle-Stone
Alabandicus, Almandine
Alabastrites
Amethystus, Amethyst
Asteria Girasol Sapphire
Basanites Basalt
Batrachites, Toadstone
Beryllus, Beryl
Callais, Turquois
Camahutum, Cameo
Ceraunia, Thunder-bolt
Chalcedonius, Calcedony
Chrysocolla, Carbonate of Copper
Chrysoprasius, Chrysoprase
Chrysolithus, Oriental Topaz
Ch. 1
: Corallium, Coral**
Crystallus, Rock-crystal
Cyanus, Lazulite
Amazon Stone Labrador
Agates, Jet
Heliotropium, Heliotrope
Jaspis, Jasper, Quartz-gems
Lapis Lydius, Touchstone, Assaying
Lyncurium, Jacinth
Magnes, Loadstone
Molochites, Malachite
Murrhina, China-Agate
Naxium, Emery
Lapis Nephriticus Jade
Obsidianum, Obsidian
Onyx, Nicolo
Opalus, Opal
Ostracias, Marcasite
Ovum Anguinum, Druid's Bead
Pantarbes
Porphyrites, Porphyry
Prasius, Plasma
Sandaster, Aventurine
Sapphirus, Lapis-lazuli
Sardius, Sard
Sardonyx
Solis Gemma, Moon-stone
Sucoinum, Amber
Topazius, Peridot
Zmilampis, Cat's-eye
Vitrum Annulare, Pastes
Description Woodcuts
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