Introduction to the Study of Minerals

Sprednja platnica
McGraw-Hill book Company, Incorporated, 1937 - 626 strani

Vsebina

INTRODUCTION
1
The General Properties of Crystals
6
The Measurement of Crystals
7
The Symmetry of Crystals
12
The Forms of Crystals
19
The Notation of Crystal Faces
24
Zones
29
Crystal Classes
35
Interference Colors
163
Vibration or Extinction Directions
171
The Determination of the Indices of Refraction in Doubly Refracting Crystals
172
Direction of the Faster and Slower Ray
174
Classification of Crystals from an Optical Standpoint
176
Interference Figures
181
Optical Properties of Twincrystals
187
Absorption and Pleochroism
188

Crystal Systems
38
Merosymmetry
40
Crystal Drawing
41
Stereographic Projection
48
Orthorhombic System
53
Monoclinic System
58
Triclinic System
64
Tetragonal System
67
Hexagonal System
75
Hexagonal Subsystem
77
Rhombohedral Subsystem
85
Isometric System
95
Composite Crystals and Crystalline Aggregates
108
Cleavage and Parting
113
Crystal Structure
116
A The Simpler Physical Properties
136
Specific Gravity
137
Hardness
141
Luster
142
Color
143
1 The Nature of Light
145
Refraction of Light
147
Polarized Light
156
Double Refraction
158
The Nicol Prism
159
The Polarizing Microscope
160
Suggested Outline of Tests to Illustrate the Optical Prop erties of Minerals
191
List of Minerals Arranged According to the Indices of Refrac tion
194
A Chemical Principles 1 Elements
197
Chemical Compounds
199
Derivation of Chemical Formulae
203
Variations in the Chemical Composition of Minerals
205
Solid Solutions Not Due to Isomorphous Mixtures
207
Minerals of Colloidal Origin Mineraloids
208
Polymorphism
209
Apparatus Used in Blowpipe Analysis
211
Reagents Used in Blowpipe Analysis
213
The Operations of Blowpipe Analysis
216
Select Blowpipe and Wet Tests
230
1 Apparatus and Reagents
243
Technique and Manipulation
246
Select Microchemical Tests
247
PART II
260
THE DESCRIPTION OF IMPORTANT MINERALS AND MINERALOIDS Introductory
261
Elements
263
Sulfids
275
B Other Mineraloids
515
PART III
521
PART IV
561
BLANK FORM for Reporting MINERALS
592
INDEX AND GLOSSARY
603
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