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 Empire State! With this famous field guide by Dan R. Lynch and Bob Lynch, field identification is simple and informative. The book features comprehensive entries for 105 rocks and minerals, from common rocks to rare finds. That means you’re more likely to identify what you’ve found. The authors know rocks and took their own full-color photographs to depict the detail needed for identification—no more guessing from line drawings. The field guide’s easy-to-use format helps you to quickly find what you need to know and where to look.
Inside you’ll find:
105 specimens: Only New York rocks and minerals
Quick Identification Guide: Identify rocks and minerals by color and common characteristics
Range/occurrence maps: See where each specimen is commonly found
Professional photos: Crisp, stunning images
New York Rocks & Minerals includes beautiful photography, relevant information, and the authors’ expert insights. With this book in hand, identifying and collecting is fun and informative!
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Focusing on rocks and minerals of New York, this field guide features full-color photographs and information to help readers identify their finds.
Introduction Important Terms and Definitions A Brief Overview of New York’s Geology Precautions and Preparations Dangerous Minerals and Protected Fossils of New York State Hardness and Streak The Mohs Hardness Scale Quick Identification Guide Sample Page Rocks and Minerals Found in New York Glossary New York Rock Shops and Museums Bibliography and Recommended Reading Index About the Authors
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Quartz Hardness: 7 Streak: White Environment: All environments What to look for: Light-colored, translucent, glassy and very hard six-sided crystals; also found as masses, veins, and sand Size: Crystals can be up to fist-sized; masses can be most any size Color: Colorless to white or gray when pure, but often stained yellow to brown or red; more rarely black or pink Occurrence: Very common Notes: Quartz, the most abundant mineral in the earth’s crust, is the first mineral all new collectors should study and be able to identify as it is ubiquitous around the world, including New York. It consists entirely of silica, the silicon- and oxygen-bearing compound that contributes to the formation of hundreds of other minerals, and it is most common as a component of rocks. As such, you’ll encounter quartz most frequently as uninteresting white or gray grains or masses within coarse-grained rocks such as granite, or as the microscopic grains that make up chert. But crystals are not rare, either, and they most often take the form of elongated hexagonal (six-sided) prisms that end with a point, frequently intergrown in groups and lining cavities in rocks. Any river or beach will yield waterworn pebbles of quartz, and glacially deposited pebbles or fragments may be found in any gravelly area. Whatever its form when you find it, quartz is easy to identify due to its distinctively high hardness (it’s typically the hardest mineral you’ll find easily), its translucency, and its conchoidal fracture (when struck, the cracks that form are circular). Where to Look: Quartz can be found virtually anywhere, especially where there is loose gravel. It’s a common find in rivers and on beaches because it’s hard enough to survive weathering.
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The Rocks & Minerals Identification Guides are state- and region-specific field guides. They utilize an innovative, user-friendly format to make rock and mineral identification simple, informative, and fun. Written by acclaimed author Dan R. Lynch, each book features full-color photography paired with a corresponding full-page description that includes size, color, where to look, occurrence maps, and more, not to mention the author’s fascinating notes. At 4.38" x 6", the compact books are easy to carry on hikes and easy to keep handy while camping. Most Rocks & Minerals Identification Guides are well over 200 pages, include around 100 types of rocks and minerals, and are priced between $12.95 and $14.95.
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Produktdetaljer
ISBN
9781591935247
Publisert
2016-04-14
Utgiver
Adventure Publications, Incorporated
Vekt
240 gr
Høyde
149 mm
Bredde
109 mm
Aldersnivå
G, 01
Språk
Product language
Engelsk
Format
Product format
Heftet
Antall sider
264