Gold: to label, see dkonline.Rock and Mineral p49
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Beryl
Crystal systems
Opal 1
Corundum
Cuprite
Citrine
Amethyst 1
Ruby
Graphite 1
Gold 2
Aquamarine
Graphite 2
Diamond
Bismuth
Arsenic
Silver ore
Platinum
Mercury
Nickel ore
Pyrite
Anorthite
Olivine
Augite
Eclogite
MORE...
THUMBNAILS
© Dorling Kindersley 2005