TABLE VII
Reading edition
Specific Gravities of Gem-Stones
Opal 2·15
Moonstone 2·57
Iolite 2·63
Quartz 2·66
Beryl 2·74
Turquoise 2·82
Beryllonite 2·84
Phenakite 2·99
Euclase 3·07
Tourmaline 3·10
Enstatite 3·10
Andalusite 3·18
Spodumene 3·18
Apatite 3·20
Axinite 3·28
Diopside 3·29
Epidote 3·37
Peridot 3·40
Idocrase 3·40
Sphene 3·40
Diamond 3·52
Topaz 3·53
Spinel 3·60
Kyanite 3·61
Garnet (Hessonite) 3·61
Benitoite 3·64
Chrysoberyl 3·73
Garnet (Pyrope) 3·78
Garnet (Demantoid) 3·84
Corundum 4·03
Garnet (Almandine) 4·05
Zircon (a) 4·20
Zircon (b) 4·69