Minerals
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What is secondary mineral？
2014-02-25 Central Geological Survey, MOEA 14649
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What are the geological processes of lithification and mineralization？
2014-02-25 Central Geological Survey, MOEA 16063
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What is clay？
2014-02-25 Central Geological Survey, MOEA 9688
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What are silicon dioxide and ferric oxide？
2014-02-25 Central Geological Survey, MOEA 9837
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What is clay mineral？
2014-02-25 Central Geological Survey, MOEA 12850
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What are glassy, crystalline and holocrystalline？
2014-02-25 Central Geological Survey, MOEA 18595
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What are the differences between rocks and minerals？
2014-02-25 Central Geological Survey, MOEA 20067
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Whether CGS offers the mineral identification services？
2014-02-25 Central Geological Survey, MOEA 15643
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What is the difference between “marble (rock)” and “marble stone”？
2014-02-25 Central Geological Survey, MOEA 18381
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What is a gold-copper deposit？
2014-02-18 Central Geological Survey, MOEA 9365