Australian and New Zealand Gemstones
Title | Australian and New Zealand Gemstones PDF eBook |
Author | Bill Myatt |
Publisher | |
Pages | 511 |
Release | 1972 |
Genre | Precious stones |
ISBN | 9780600071174 |
Gemstones and Minerals of Australia
Title | Gemstones and Minerals of Australia PDF eBook |
Author | Gayle Webb |
Publisher | Reed New Holland |
Pages | 128 |
Release | 2014 |
Genre | Minerals |
ISBN | 9781921517297 |
This text is an accessible reference and identification guide to all gemstones and minerals found in Australia. The book introduces the reader to the chemical and crystal systems of the stones, before providing detailed descriptions of each stone including composition, structure and distribution.
Australian Gemstones in Colour
Title | Australian Gemstones in Colour PDF eBook |
Author | Nance Perry |
Publisher | |
Pages | 124 |
Release | 1967 |
Genre | Precious stones |
ISBN |
Gemstones and Their Origins
Title | Gemstones and Their Origins PDF eBook |
Author | P.C. Keller |
Publisher | Springer Science & Business Media |
Pages | 315 |
Release | 2012-12-06 |
Genre | Science |
ISBN | 1468466747 |
Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves presents an eloquent chronicle of the Earth's life story. It reveals to the expert the prodigious processes which formed the present crust of our planet, of which this volume discloses a small but exciting detail. The materials of the Earth's crust are the rocks. In this book, the author expounds on how they were formed, why they altered, why they became the cradles of precious gemstones, how they are categorized, and how they are now exploited by man. What initiates the growth of gemstones? How do they crystallize? Why do gemstones of the same species, originating from different sources, vary? What causes the occurrence of varieties? Why do diamonds, unlike other precious stones, occur not near the Earth's surface in its crust, but deep down beneath it in the upper mantle? These are only a few of the entrancing subjects discussed in this enlightening volume. The reader learns that the Earth is surprisingly alive and altering constantly-sometimes through slow and equable changes and at times by violent and tremendous cataclysms, events from which gemstones issue.
How to Find Australian Gemstones
Title | How to Find Australian Gemstones PDF eBook |
Author | Douglas M. Stone |
Publisher | |
Pages | 144 |
Release | 1977 |
Genre | Precious stones |
ISBN | 9780701806514 |
Gemstones
Title | Gemstones PDF eBook |
Author | Robin Hansen |
Publisher | Princeton University Press |
Pages | 241 |
Release | 2022-04-12 |
Genre | Nature |
ISBN | 0691214484 |
Originally published: London: Natural History Museum, 2022, as: The Natural History Museum book of gemstones: a concise reference guide.
A Field Guide to Australian Rocks, Minerals and Gemstones
Title | A Field Guide to Australian Rocks, Minerals and Gemstones PDF eBook |
Author | Wolf Mayer |
Publisher | Adelaide, Australia : Rigby |
Pages | 352 |
Release | 1976 |
Genre | Mineralogy |
ISBN |