The New Encyclopaedia Britannica, Volume 8 |
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Page 61
... mineral shielded from reaction by a new sta- ble mineral overgrowth , or mineral layering that represents sedimentary layering . Folds or other deformation structures can be used to ascertain the direction of stress . Metamorphic rocks ...
... mineral shielded from reaction by a new sta- ble mineral overgrowth , or mineral layering that represents sedimentary layering . Folds or other deformation structures can be used to ascertain the direction of stress . Metamorphic rocks ...
Page 154
... mineral , any naturally occurring homoge- neous solid that has a definite chemical composition and a distinctive internal crys- tal structure . Minerals are usually formed by inorganic processes . While this definition is applicable in ...
... mineral , any naturally occurring homoge- neous solid that has a definite chemical composition and a distinctive internal crys- tal structure . Minerals are usually formed by inorganic processes . While this definition is applicable in ...
Page 161
... Mineral Commodity Summaries 1992 . Source : U.S. Department of Commerce , Mineral Commodity Summaries 1992 . Manganese country mine % of production world reserves demonstrated % of world Mercury country 1991 mine 1991 ( metric tons ) ...
... Mineral Commodity Summaries 1992 . Source : U.S. Department of Commerce , Mineral Commodity Summaries 1992 . Manganese country mine % of production world reserves demonstrated % of world Mercury country 1991 mine 1991 ( metric tons ) ...
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