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Shahejie Formation (2)
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Mesozoic
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Triassic
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Paleozoic
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Witwatersrand Supergroup (1)
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rutile (3)
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olivine group
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zircon group
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zircon (3)
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sorosilicates
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axinite group (1)
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epidote group
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epidote (2)
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zoisite (1)
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ilvaite (1)
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ring silicates
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beryl (1)
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sheet silicates
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chlorite group
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clinochlore (3)
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clay minerals
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imogolite (9)
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kaolinite (262)
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hydrobiotite (3)
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illite (150)
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mica group
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phengite (3)
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phlogopite (14)
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palygorskite (44)
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pyrophyllite (9)
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serpentine group
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chrysotile (7)
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cronstedtite (2)
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talc (14)
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sulfates
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sulfides
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orpiment (1)
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tellurides
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uranium minerals (2)
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Primary terms
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absolute age (7)
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Africa
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Antarctica
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asbestos deposits (1)
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Asia
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Far East
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atmosphere (2)
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bacteria
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