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Aurum, Gold
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102
AURUM.
the other materials left in the crucible, but get the gold quite pure, but slightly diminished in weight. The discovery of these mines dates very far back; probably they were found out by the ancient kings."
It may here be remarked that this method of refining the dust was a very perfect operation, as nothing can exceed the purity of the gold issued by the Ptolemies. Yet it is certain that the native Egyptian metal contained a large alloy of silver, for the jewelry of the independent dynasty is invariably of electrum, or little better. Sir G. Wilkinson has observed that wherever the rocks in any part of Egypt show veins of quartz they exhibit traces of former exploration by the ancients in search of gold, the quartz lying about in fragments, broken very small, in order to discover the traces of the precious metal.
The Gauls, on the first invasion of their country by the Romans, possessed enormous quantities of gold made up into torques and armlets. These were not the spoils of more civilised countries, for they appeared thus decorated on their first invasions of Italy and Greece—Virgil's Gauls scaling the Capitol, " lactea colla, auro innectuntur." Caesar's conquest of that country so flooded Rome with gold, that, according to Suetonius, the pound weight was exchanged for only 3000 sesterces, or 750 denarii, or 1 : 8, the usual proportion being 1:13 ; but it must be remembered the Gallic native gold is of a somewhat low standard, holding copper as well as silver. Diodorus Siculus, a contemporary of Julius Caesar, leaves no doubt upon the first point. His words (v. 27) are, " In Gaul silver is not found at all, but gold in plenty,
3
which nature supplies to the inhabitants without either mining or any trouble. For the course of their rivers, being full of sinuosities, and dashing against the banks of the
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Table Of Contents
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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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