Mineralogy: an introduction to the scientific study of minerals

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Macmillan and Co., limited, 1902 - Science - 584 pages
 

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Contents

Zone Symbol
33
The Zonelaw
34
Axes of Symmetry Centre of Symmetry
35
The Thirtytwo Classes of Crystals
37
The Six Systems
38
The Various Kinds of Forms
43
The Cubic System Holosymmetric Class
45
Tetrahedrite Class
47
Pyrites Class
49
Cuprite Class
50
Ullmannite Class
51
The Tetragonal System Holosymmetric Class
52
Chalcopyrite Class
55
Scheelite Class
56
Wulfenite Class
57
Axial Ratio
58
The Orthorhombic System Holosttmmetric Class
59
Sulphur Class
62
Axial Ratios
63
The Hexagonal System The Two Sorts of Crystal Axes
64
The Hexagonal System Holosymmetric Class
67
Calotte Class
69
Tourmaline Class
72
Dioptase Class
74
Greenockite Class
76
Axial Ratio or the Axial Angle
77
The Monoclinic System Holosymmetric Class
78
Axial Ratios
81
The Anorthic System Holosymmetric Class
82
Axial Ratios and Angles
83
THE REGULAR CONJUNCTION OF CRYSTALS 1 Parallel Growth
84
Regular Conjunction of Crystals which are not Parallel nor Twinned
85
Twinning
86
Supplementary Twinning
89
Repeated Twinning
91
Mimetic Twinning and Pseudosymmetry
93
Secondary Twinning
95
CHAPTER III
96
Light Figures
97
CHAPTER IV
99
The Reflecting Goniometer
100
B THE CRYSTALLOPHYSICAL PROPERTIES CHAPTER V
107
Elasticity
108
Cohesion
109
Hardness HO 4 Etched Figures
111
Pyroelectricity
115
CHAPTER VI
118
Interference
119
Colours of Thin Plates
120
Newtons Scale of Colours
123
PlanePolarised Light
125
Resolution and Analysis of Polarised Light
126
Action of Crystals on Light
127
Double Refraction of Iceland Spar 12 S 9 Double Refraction of Crystals in general
130
Examination in Parallel Light
132
Examination in Convergent Light
133
The Fresnel Ellipsoid 15 The Indicatrix
135
Biaxial Crystals
138
Uniaxial Crystals
141
Extinction
142
Parallel Light
144
Convergent Light
146
The Axial Angle The Bisectrices 22 Sign of the Double Refraction
154
Dispersions of the Optic Axes and Bisectrices
155
Pleochroism
159
Rotatory Polarisation
161
The Optical Constants
163
vii
166
The Sign of the Birefringence
170
Use of the Quartz Wedge with Biaxial Crystals
172
The Method of Compensation
174
The Method of Sensitive Plates
175
Water of Crystallisation
203
Basicity of Acids
205
Classification of the Silicates
206
BOOK III
210
THE RELATIONS BETWEEN THE PROPERTIES OF MINERALS
211
Isomorphism Polymorphism and Vicarious Replacement
213
Mineral Groups
215
The Physical Relations of Minerals belonging to the same Group
217
The Variations in the Composition of a Mineral
223
Isomorphous Mixtures
225
Mixtures of Dimorphous Substances
227
The Crystalline Form and Physical Properties of Solid Solutions
228
The Optical Properties of Solid Solutions
232
Optical Properties or the Felspar Group
234
Intergrowths and Overgrowths of different Minerals
236
Intergrowths and Overgrowths of the same Mineral
238
The Structure of Minerals
240
BOOK IV
243
CHAPTER I
245
Morphological and Structural Charaters HabitSurface Characters of Crystal FacesAggregation of CrystalsForm and Structure of Crystal AggregatesA...
246
Characters depending upon Cohesion
254
CHAPTER II
266
The Thirtytwo Classes of Crystals
278
SECTION I
291
Sulphur
298
SECTION II
308
The Galena Group
315
The CopperGlance Group
321
The Marcasite Group
329
SECTION VI
336
Stephanite
342
Cuprite
348
The Hydrated Sesqiioxides
357
Anatase and Brookite
364
SECTION XII
382
SECTION XIII
388
The Calcite Group
392
The Aragonite Group
405
The Basic Carbonates
411
SECTION XVI
417
The Amphibole Group
425
SECTION XVII
433
Apophyllite
440
THE SILICATES OF ALUMINIUM
442
SECTION XIX
448
OrTHOCLASE
454
The Plaqioclases
461
SECTION XXI
469
135
473
Tourmaline
478
The Heulandite Group
486
Vesuvianite
494
SECTION XXIV
501
Zircon
507
The Olivenite Group
516
Anhydrite
525
SECTION XXVII
531
General Survey of the Mineral Kingdom
535
Tables of Reactions
548
INDEX
563
196
564
138
565
198
566
141
569
142
570
203
571
205
572
146
573
155
576
161
577
BOOK II
578
206
580

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