Rocks & Minerals 4

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Science journalist and futurist Lawrence Joseph has studied the unprecedented solar storms since the last ice age and in Solar Cataclysm he reveals the monumental ecological, biological, emotional, ……続きを見る

This book was the first work to attack Von Liebig’s salt fertilizer thesis, and it stands as valid today as when first written over 100 years ago. Translated from the German writings of Julius Hense……続きを見る

This stimulating book provides a highly practical window into the complex, interdependent relationships between soil, plants, animals, and human beings, including special insight into the fascinatin……続きを見る

This volume is a timely and worthy addition to the preceding Albrecht Papers. Those who read it will be inspired to spread the word about the logical connections among soil health, animal health and……続きを見る

Updated 5th Edition with new sites & museums! Learn Where & How to Dig, Pan and Mine Your Own Gems & Minerals SOUTHWEST Arizona California Colorado Hawaii Kansas Nevada New Mexico Oklaho……続きを見る

Updated 6th edition with new sites & museums! Learn Where & How to Dig, Pan and Mine Your Own Gems & Minerals NORTHWEST Alaska • Idaho • Iowa • Minnesota • Montana • Nebraska North Dakota • Oregon •……続きを見る

Updated 6th edition with new sites & museums! Learn Where & How to Dig, Pan and Mine Your Own Gems & Minerals NORTHEAST Connecticut • Delaware • District of Columbia • Indiana • Illinois • Maine Mas……続きを見る

Learn Where & How to Dig, Pan and Mine Your Own Gems & Minerals NORTHEAST Connecticut Delaware District of Columbia Indiana Illinois Maine Massachusetts Maryland Michigan New Hampsh……続きを見る

Learn Where & How to Dig, Pan and Mine Your Own Gems & Minerals NORTHWEST Alaska Idaho Iowa Minnesota Montana Nebraska North Dakota Oregon South Dakota Washington Wyoming Whether y……続きを見る

Those stones you see might be an important mineral that the Earth creates. This book will open your child’s minds to the importance of the rocks and minerals you can dig up. It is a very informative……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

Unlock the long‑standing allure of jade with this engaging collection of historical gemological and crystallographic articles, selected from sources dating back to the early 1900s and earlier. Jade ……続きを見る

Popular Gemmology constitutes a definitive guide on many aspects of gemmology, covering a wide range of natural and manufactured gems, their taxonomy, and the methods in which they are machined. The……続きを見る

A thoughtfully curated collection of classic articles dating from the early 1900s and before. Selected for their lasting relevance and clarity, the writings explore how gemstones are classified and ……続きを見る

Explore the science and story of one of the most colourful and fascinating gemstones with this carefully curated collection of classic gemological articles. Featuring historical material from the ea……続きを見る

Captivating photographs of the world’s most detailed bird fossils illuminate the early diversity of avifauna. When fossils of birds from China’s Jehol region first appeared in scientific circles, th……続きを見る

A scientific history of gemstones and crystals around the world. Featuring the origin, symbolism, and uses of various precious stones. This detailed article explores the history of gemology and crys……続きを見る

A comprehensive guide to the main varieties of birthstones, including their properties and structure. This volume features extracts from eight historical articles on the subjects of gemology and cry……続きを見る

Earth's outer crust Geologists Time and rock units Geologic map What are rocks and minerals? Chemical elements Minerals Rocks Igneous rocks Extrusive or volcanic igneous rocks Intrusive igneous rock……続きを見る

Der französische Minen-Ingenieur Cyprien Méré reist nach Afrika, um in die dortigen Diamantenminen Arbeit zu suchen. In den Minen arbeiten Minenarbeiter aus aller Ländern der Welt unter schweren Bed……続きを見る

Geological Structures is an easy-to-use, highly informative photographic field guide that introduces the great variety of geological structures to be found all around us. The authors' beautiful phot……続きを見る

Get this must-have guide for New York, featuring full-color photographs and information to help you identify rocks and minerals. Identify and collect rocks and minerals with the perfect guide to the……続きを見る

Learn the essentials of Asian gemstones with this useful and portable reference book. Gemstones, both mythical and real, are deeply embedded in the arts, religions and cultures of Asia. This handy p……続きを見る

Learn the essentials of Asian gemestones with this useful and portable reference book. Gemstones, both mythical and real, are deeply embedded in the arts, religions and cultures of Asia. This handy ……続きを見る

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

An entertaining and well-researched history of the Hope diamond Since its discovery in seventeenth-century India, the Hope diamond, a glimmering deep blue gem weighing over 45 carats, has been shrou……続きを見る

The story of one citizen's fight to preserve a US stake in the future of clean energy and the elements essential to high tech industries and national defense. American technological prowess used to ……続きを見る

If you impose education on a child, then chances are high that learning will fail. But if make the task easy to do and fun, then chances are high your child will fall in love with knowledge! The key……続きを見る

What makes the Earth unique in the solar system? Look into the composition of the planet, particularly the kind of rocks and minerals found here, and your child will understand why life exists. The ……続きを見る