The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 2005 |
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Page 203
... olivine ) , for example , olivine is preferentially oriented so that the cleavage plane perpendicular to the b axis is parallel to the microscopic laminated structure of the rock . Individual grains of olivine within such rocks typ ...
... olivine ) , for example , olivine is preferentially oriented so that the cleavage plane perpendicular to the b axis is parallel to the microscopic laminated structure of the rock . Individual grains of olivine within such rocks typ ...
Page 204
... olivine ranging from 50 to 80 percent forsterite . Olivine is typically associated with calcic plagioclase , mag- nesium - rich pyroxenes , and iron - titanium oxides such as magnetite and ilmenite . This mineralogical association is ...
... olivine ranging from 50 to 80 percent forsterite . Olivine is typically associated with calcic plagioclase , mag- nesium - rich pyroxenes , and iron - titanium oxides such as magnetite and ilmenite . This mineralogical association is ...
Page 205
... olivine may set in even before the complete consolidation of the lava or the hypabyssal magma . This is evident from the observation of rock textures in which shells of iddingsite surrounding a core of olivine are , in turn , surrounded ...
... olivine may set in even before the complete consolidation of the lava or the hypabyssal magma . This is evident from the observation of rock textures in which shells of iddingsite surrounding a core of olivine are , in turn , surrounded ...
Common terms and phrases
albite amphiboles ancient aragonite areas atoms basalt bivalves body calcite calcium called carbonate central centre century cephalopods chemical clay minerals colour common composition contain crust crystals ctenidia cult cultural deities deposits developed dolomite Earth economic eggs electron evaporite example existence facies feldspar Figure garnet gastropods goddess gods grains Hittite human igneous rocks important industrial kaolinite king known layers limestone magma magnetic major mantle cavity marine material mental metamorphic rocks metaphysics Mexican Mexico City mica Michelangelo microscope millimetres Milton mimicry mind Mineralogy modern Molière Mongolia Mongols Moscow myth nature object occur ocean olivine organic originally oxide percent period philosophers physical plagioclase political population pressure produced properties pyroxene quartz reaction region religion religious reprinted result sandstones sedimentary rocks sediments shell silicate smectite snails society species structure Sumerian surface temperature temple tetrahedrons texture tion typically United urban volcanic