The New Encyclopaedia Britannica |
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Page 172
Many nonmetallic minerals have a relatively narrow range of colours, although
some have an unusually wide range. ... It is a property by which minerals may be
described relative to a standard scale of 10 minerals known as the Mohs scale of
...
Many nonmetallic minerals have a relatively narrow range of colours, although
some have an unusually wide range. ... It is a property by which minerals may be
described relative to a standard scale of 10 minerals known as the Mohs scale of
...
Page 187
Perthites are common , whereas antiperthites are relatively rare . The plagioclase
series is essentially continuous at both high and low temperatures . The names of
members of the series designate relative proportions of the end - members ...
Perthites are common , whereas antiperthites are relatively rare . The plagioclase
series is essentially continuous at both high and low temperatures . The names of
members of the series designate relative proportions of the end - members ...
Page 188
In the laboratory , it is relatively easy to identify the feldspars by determining their
chemical compositions , their structures , or their optical properties . In some
cases , staining techniques are employed . Fortunately , most feldspar grains can
...
In the laboratory , it is relatively easy to identify the feldspars by determining their
chemical compositions , their structures , or their optical properties . In some
cases , staining techniques are employed . Fortunately , most feldspar grains can
...
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Contents
CONTENTS METAPHYSICS 27 MEXICO | 27 |
MEXICO CITY | 51 |
MICHELANGELO | 55 |
Copyright | |
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Anatolia ancient appears areas atoms become body buildings called central centre century changes chemical clay common complex composition consists contain continued crystals cuttlefishes deposits developed direction early economic electron example existence experience fact feldspar Figure given gods grains human igneous important increase individual industrial Italy king known land later layers less light major mantle material means mental metamorphic metaphysics Mexican Mexico microscope mimicry mind minerals Moscow nature object occur organic originally percent period person philosophers physical pigeonite political population present pressure produced properties quartz range region relatively religion religious represented result rocks sedimentary rocks sediments shell silicate social society species structure surface temperature things thought tion typically United various