著者：Melinda Tay
出版社： Precious Stone Media co
発売日： 2026年01月08日
The Complete Natural Diamonds Guide is your ultimate resource for understanding the diamond industry and navigating its complexities. Whether you're a newcomer looking to enter the business or an ex……続きを見る
Mount Rushmore is an American icon. Its majestic, 60-foot-tall carved presidential heads of George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln, overlooking South Dakota's B……続きを見る
Just as it is important to bring the proper tools for mining, it is also important to begin your day with the proper spiritual tools; prayer, praise, devotional reading, getting on your knees and gi……続きを見る
In "Walks and Talks in the Geological Field," Alexander Winchell masterfully blends his extensive knowledge of geology with an engaging narrative style that invites both the layperson and the schola……続きを見る
Inclusions are one of the most diagnostic characteristics of gemstones assisting greatly in their identification. Specific inclusions can often indicate a gemstones geological occurrence, its countr……続きを見る
This informative and fully illustrated volume explores the untold story of agate gemstones hidden in Kentucky's scenic Knobs Region.
With their fine grain and rich assortment of colors, agate stones……続きを見る
Dive into the fascinating world of coastal wildlife with this holiday pocket guide. Featuring 40 beautifully illustrated pebbles, shells, crabs, small sea creatures and more, discover more about lif……続きを見る
Un frammento di popular science che apre lo sguardo su una scoperta cruciale e straordinaria. Dalle parole del Premio Aspen, il racconto dell'intricato e affascinante percorso che lo ha portato a ce……続きを見る
This books is a guide to your personal discovery of crystals.
The beauty and power of crystals and other stones have long been recognized, from the ancient times of Tutankhamen to the modern masterp……続きを見る
Extrait : "Depuis le jour où l'homme a , pour la première fois, soulevé l'épiderme terrestre pour y creuser des sillons et pour y tracer des chemins ; depuis l'époque où il a su pénétrer dans le sei……続きを見る
著者：Linda Starke
出版社： Taylor & Francis
発売日： 2016年12月05日
Mining is fundamental to our lives - we wear and travel in; build, cook and communicate with its products daily. However, it is also one of the most environmentally damaging industries. This study e……続きを見る
Stability of underground excavations is of great importance to an operating mine because it ensures the safety of the working people and operating equipment, and successful ore production. Due to th……続きを見る
10 out of 12 people have their birthstone wrong.
Your birthstone is the gemstone that represents you from birth.
Birthstones came from the talismanic breastplate of a biblical high priest. However, ……続きを見る
All humans share certain components of tooth structure, but show variation in size and morphology around this shared pattern. This book presents a worldwide synthesis of the global variation in toot……続きを見る
Todo acerca de los meteoritos . Feulton Destell , investigador meteorítico , habla en este libro , sobre los últimos hallazgos encontrados . Clasificación meteorítica con las diferentes tipologías ,……続きを見る
著者：B. Anderson
出版社： Read Books Ltd.
発売日： 2011年10月25日
This vintage book contains a complete guide to testing gems and gemstones for purity and authenticity. Complete with a plethora of useful illustrations and all the information a prospective or exist……続きを見る
