Natural Resources, School of

 

Date of this Version

7-1976

Comments

Published by Conservation & Survey Division, University of Nebraska. Copyright © July 1976 The Board of Regents of the University of Nebraska.

Abstract

Table of Contents:

Introduction
What Are Minerals? What Are Rocks? What Are Gemstones?
What is Mineralogy?
What Can Minerals Tell Us?
Minerals and Geologic Time
Minerals as Environmental Indicators
Minerals as Resources
Where are Minerals Found?
Collecting Courtesy
Tools for Collecting Minerals
Care of Tools
Tips on Collecting Minerals
Safety Rules
Preparation of Specimens
Mineral Identification
Physical Properties
Cleavage
Hardness
Luster
Streak
Specific Gravity
Form
Color
Tenacity
Fluorescence
Chemical Properties
Chemical Composition
Taste
Chemical Tests
Crystallography
Common Nebraska Minerals
Amphibole
Ankerite
Aragonite
Autunite
Barite
Bauxite
Biotite
Calcite
Carnotite
Celestite
Chalcedony
Chalcopyrite
Chalk
Chert
Chlorite
Coal
Copper
Dolomite
Epidote
Feldspar
Fluorite
Geodes
Goethite
Gold
Gypsum
Halite
Halotrichite
Hematite
Jade
Limestone
Limonite
Magnetite
Marcasite
Melanterite
Meteorites
Mica
Muscovite
Opal
Onyx
Orthoclase, Plagioclase
Pyrite
Pyrolusite
Pyroxene
Quartz
Sabugalite
Sand Crystal
Selenite
Septarians
Siderite
Sphalerite
Sulfur
Turquoise
Uranium Minerals
Vivianite
Gem and Ornamental Stones from Nebraska
Introduction
Type 1. Gem and Ornamental Stones Indigenous to Nebraska
Type II. Gem and Ornamental Stones Transported into Nebraska by Streams Originating in Adjacent Western States
Type III. Gem and Ornamental Stones Having Been Transported into Nebraska from Northern Sources by Glaciers
Common Nebraska Gemstones
Agate, Type II Occurrences
Fortification or "Fairburn" Agates
Prairie Agates
Moss Agates
Agate, Type III Occurrences
Lake Superior Agates
Moss Agates
Chalcedony, Type I Occurrences
Vein Chalcedony and Blue Chalcedony
Chalcedony, Type II Occurrences
Lard Agate
Chert, Type I Occurrences
Pennsylvanian, Permian, and Cretaceous Chert
Chert, Type III Occurrences
Miscellaneous Chert
Coral, Type I Occurrences
Horn Coral
Coral, Type II Occurrences
Colonial Coral
Coral, Type III Occurrences
Horn and Colonial Coral
Feldspar, Type II Occurrences
Labradorite, Moonstone
Garnet, Type II Occurrences
Hematite
Ivory
Jade, Type II Occurrences
Nephrite
Jade, Type III Occurrences
Nephrite
Jasper, Type II Occurrences
Jasper, Type III Occurrences
Onyx, Type I Occurrences
Opal, Type I Occurrences
Pearl and Mother-of-Pearl
Petrified Wood and Plants, Type I Occurrences
Black Wood
Opalized Wood
Petrified Wood and Plants, Type II Occurrences Cycadophytes Tempskya Ferns Petrified Wood and Plants, Type III Occurrences
Quartz, Type II Occurrences
Quartz, Type III Occurrences
Topaz
Unakite
Miscellaneous Heavy Minerals
Selected References
Appendix I
Appendix II
Glossary