PRESIDIUM Gem Computer Gauge PGCG Mode D'emploi page 32

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3. READING TEST RESULTS with your Presidium
Gem Computer Gauge
The S.G. values for the following gemstones are stored
in Presidium Gem Computer Gauge:
Common stones (in alphabetical order)
Albite feldspar
Alexandrite
Almandite garnet
Amber
Andalusite
Andradite garnet
Apatite
Benitoite
Beryl
Brazilianite
Calcite
Chalcedony
Coral
Corundum
Cubic zirconium oxide
Diamond
Danburite
Diopside
Dioptase
Fluorite
Glass
G.G.G.
Hematite
Idocrase
Nephrite
Obsidian
Oligoclase feldspar
Opal
Orthoclase
Pearl
Peridot
Plastic
Pyrope garnet
Quartz
Rhodochrosite
Rhodolite garnet
Rhodonite
Sapphire
Scapolite
Serpentine
Shell
Sinhalite
Sodalite
Sopodumene
Spessartite garnet
Sphene
Spinel
Strontium titanate
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