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Achaia, a source of yellow ochre, 174
Achates, a variegated chalcedony or jasper, 52, 128-29
Achates River, 52, 129
Adamas, a very hard stone, 48, 91-92, 148
Aetites, eaglestone, 69
Agate, 127-29
Alabaster: called ony* by Pliny, 128; oriental, 72, 214
Alabastritcs, probably Egyptian onyx marble, 46, 59, 72-73, 214
Alexander the Great, 52, 130
Alexandria, manufacture of blue frit at,
185 Alloys: assaying or testing of, 54, 150-56;
copper, 164-67; gold, 54, 106, 151-53,
155-56! silver, 54, 152, 156 Alum, 207 Alyattes, 158 Amalgams, 204
Amber, 48, 51, 86, m-13, 116-17 Amethyst, 51-52, 121-22 Ampelitis, an earth smeared on vines, 167 Amulets: coral, 141; eaglestones, 69; lapis
lazuli, 127 Analyses and identifications of ancient materials, 171-72, 174, 177, 181, 189-90,
194 Anthracite, 86 Anthrabfon, a very dark or black stone,
51, 52, 130-31 Anthrax, a red precious stone, 46, 48, 89-
92, 130 Apion, 102 Arabic stone, 94 Arcadia, 52
Aristotle, 63, 64, 65-66, 159-60 Armenia, whetstone obtained from, 54,
149-50 Arrhenicum, Latin name for orpiment, 171 Arsenic sulfides, 171-72 Asbestos, 87-88 Ashes, 49, 60, 78, 92, 221-22 Asia, stones brought from, 58, 206-207 Asian stone, 207 Asphalt, 79, 80, 85 Assaying in antiquity, 150-59 Assian stone, 207 Assus, 207
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Aster, a variety of Samian earth, 212-13
Astrion, a precious stone, 119
Astyra, 52, 129-30
Aswan: quarries of granite at, 72; site o£ ancient Syene, 132
Athens, identifications of pigments in excavations at, 173, 174, 177, 185, 190, 194
Athos, Mt., 59, 213
Attica: ochre of, used by Micon and Polygnotus, 175; source of yellow ochre, 17374; white lead found in graves in, 18990
Attractive power, stones which exhibit an, 46, 51, 67-68, 113, 117-18
Azurite, 105, 143-44, 183
Baal, 104
Babylonians, king of the, 50, 101
Bactria (or Bactriana), stones from, 52, 102, 133-34
Badakshan, the ancient source of lapis lazuli, 127, 184
Balearic Islands, a source of red ochre, 179
Barleycorn, an Attic weight, 154
Basalt, quarried in ancient Egypt, 75
Basanite, used for touchstones, 157
Belemnite, wrongly identified with lyngourion, 109-10
Beryl, 149, 217
Bina (or Binai), 47, 48, 80-81, 82, 85
Birdlime, 55, 167-69
Bithynia, the source of spinos, 81
Bithynians, in Thrace, 81
Bitumen and bituminous substances, 8082, 85
Blue frit, 183-87
Blue vitriol, 207
Bones, found in the earth, 136
Borax, wrongly identified with chrysocolla, 105
Boz Dagh, the ancient Mt. Tmolos in Lydia, 157
Brass, ancient knowledge of, 164-65
Bronze, purification of, 167
Calcareous tufa, 74
Calcium compounds: carbonate, 67, 78; oxide, 210; sulfate, 210, 218
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