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Hyacinthus, Sapphire, Corundum
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HYACINTHUS.
199
gold wire, the exact ornament referred to by the poet Nau-machius.
Previous to the Imperial epoch, engravings in Sapphire are of the rarest possible occurrence. A small Etruscan scarab, however, on an inferior variety has recently come under my notice, and also a magnificent head of Jupiter inscribed ΠΥ, executed in the purest Greek style. This latter had been discovered as ornamenting the pommel of a Turkish dagger, the intaglio turned downwards, and the back of the stone rudely facetted by the Oriental lapidary into whose hands this precious monument had fallen, an additional proof of its genuine antiquity. This stone was one inch in diameter. Even superior to this as a work of art, and belonging to the same school, is the Medusa's Head in nearly full face, one of the chief glories of the Marlborough Collection, of the most exquisitely finished execution combined with the utmost vigour, and which would render valuable even an ordinary material, but greatly enhanced here by the fine quality of the Sapphire, caîrulean and clear· Another of much larger size (f in. high) in the same collection, on a stone of much deeper azure, though streaked with lighter shades, bears the head of Caracalla, as good a work in point of art as his times could produce, but in which the peculiar execution bears testimony to the difficulties of the task, the hair being made out by a series of drill-holes set close together to express the short curly locks of the irascible tyrant. A singular vitreous polish has been given to the interior of the intaglio, the infallible characteristic of all really antique work in gems of uncommon hardness. But the most famous of all is the Signet of Constantius II. (now in the Einuccini Collection), on a perfect stone
3
w eighing fifty-three carats. The Emperor is represented as spearing a monstrous wild boar, designated thereon ΗΙΦΙΑΟ (from his sword-like tusks), before a reclining female figure personifying " Cassarea of Cappadocia," the scene of the exploit. The inscription CONSTANTIVS AVG in the field manifests that this costly stone had been engraved for the actual signet of the imperial hunter. There is now in London a unique
·' This gem has been long known : Dueangc first published it.
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Table Of Contents
Annotate/ Highlight
King. Natural History of Precious Stones.
Contents & Preface
Introduction
Achates, Agate
Adamas, Diamond
Aetites, Eagle-Stone
Alabandicus, Almandine
Alabastrites
Amethystus, Amethyst
Argentum, Silver
Caelatura, Antique Plate
Asteria, Girasol
Aurum, Gold
Basanites, Basalt
Batrachites, Toadstone
Beryllus, Beryl
Callais, Turquois
Camahutum, Cameo
Carbunculus, Ruby
Ceraunia, Thunder-bolt
Chalcedonius, Calcedony
Chrysocolla, Carbonate of Copper
Chrysoprasius, Chrysoprase
Chrysolithus, Oriental Topaz
Ch. 1
: Corallium, Coral**
Crystallus, Rock-crystal
Cyanus, Lazulite
Agates, Jet
Heliotropium, Heliotrope
Hyacinthus, Sapphire, Corundum
Jaspis, Jasper, Quartz-gems
Lapis Lydius, Touchstone, Assaying
Lyncurium, Jacinth
Magnes, Loadstone
Margarita, Pearl
Molochites, Malachite
Murrhina, China-Agate
Naxium, Emery
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
Smaragdus, Emerald
Solis Gemma, Moon-stone
Sucoinum, Amber
Topazius, Peridot
Zmilampis, Cat's-eye
Vitrum Annulare, Pastes
Orpheus on Gems
Jewelry of the Ancients
Chemical Analysis of Precious Stones
Weights and patterns of famous Diamonds, &c
Notes
Description of the Tail Pieces
Index
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