Author: John M. FetherstonPublisher:
ISBN: 9781741684490
Category : Mines and mineral resources
Languages : en
Pages : 306
Book Description
Gemstones of Western Australia
Author: John M. FetherstonPublisher:
ISBN: 9781741684490
Category : Mines and mineral resources
Languages : en
Pages : 306
Book Description
Guidebook to the Pegmatites of Western Australia
Author: Mark Ivan JacobsonPublisher:
ISBN: 9780859053785
Category : Pegmatites
Languages : en
Pages : 356
Book Description
Summarises the history, geology and minerology of all known pegmatites in Western Australia, as well as providing specific geodetic locations of these deposits and their owndership, where known.
Geology and Mineral Resources of Western Australia
Author: Geological Survey of Western AustraliaPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 862
Book Description
Geology of the World's Major Gold Deposits and Provinces
Author: Publisher:
ISBN: 9781629493121
Category : Geology, Economic
Languages : en
Pages : 845
Book Description
Gemstones and Their Origins
Author: P.C. KellerPublisher: Springer Science & Business Media
ISBN: 1468466747
Category : Science
Languages : en
Pages : 315
Book Description
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.
Gemstones
Author: Robin HansenPublisher:
ISBN: 9781486315246
Category : Gems
Languages : en
Pages : 0
Book Description
Gemstones have been a source of delight and fascination for many thousands of years, from the icy brilliance of diamond and the soft iridescence of pearl, to tough jade gems once used in weapons and pink topaz that was popular in Victorian jewellery. This book looks at each of the world's known types of gemstone in turn, exploring their unique beauty, rarity and durability. It reveals how each of the gem minerals forms, where they are found and mined, and how they are identified. The book also explains how to distinguish the real from the fake, as well as cutting and polishing techniques. The use of gemstones in adornment, from over 4,500 years ago to the present day, is also explored. With sumptuous colour photographs, Gemstones is a dazzling insight into the world of the rare and the valuable.
Statistical Register of Western Australia for ... and Previous Years
Author: Barite and Fluorite in Western Australia
Author: P. B. AbeysinghePublisher: B Geological Survey of Western Australia
ISBN:
Category : Science
Languages : en
Pages : 110
Book Description
Official Year Book of Western Australia
Author: Mineral Occurrences and Exploration Potential of the East Pilbara
Author: K. M. FergusonPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 124
Book Description