The following information was excerpted from the New Hampshire Statutes, Title 1, Chapter 3, Section 3:15.
TITLE I THE STATE AND ITS GOVERNMENT
CHAPTER 3 STATE EMBLEMS, FLAG, ETC.
3:15 State Gem. -- Smoky quartz is hereby designated as the official state gem of New Hampshire.
Source. 1985, 11:1, eff. May 31, 1985.
New Hampshire Statutes. New Hampshire General Court. 2009. 13 April 2009 <http://www.gencourt.state.nh.us/rsa/html/nhtoc.htm>
Shearer, Benjamin F. and Barbara S. State Names, Seals, Flags and Symbols: A Historical Guide Third Edition, Revised and Expanded. Westport, Conn: Greenwood Press, 3 Sub edition, 2001.
Smoky Quartz: The Quartz Page - To share information on locations, properties and formation of all forms of quartz.
Smoky quartz: Mineral fact sheet and information page from MineralMiners.com.
Quartz: United States Geological Survey (USGS).
The Mineral Industry of New Hampshire (2004): Prepared under a Memorandum of Understanding between the U.S. Geological Survey and the New Hampshire Geological Survey for collecting information on all nonfuel minerals.
State Gems: Complete list of official state gems.
More symbols & emblems: Complete list of official New Hampshire state symbols.
Eyewitness Books: Rocks & Minerals, by Chris Pellant, R.F. Symes 72 pages. DK CHILDREN (August 2, 2004) Reading level: Ages 9-12. Here is a spectacular and informative guide to the amazing world beneath our feet. Stunning color photographs of rocks, fossils, minerals, precious metals, crystals, jewels and gemstones give the reader a unique "eyewitness" insight into the evolution and composition of the Earth. See rocks that have come from outer space, stalactites as old as dinosaurs, the strange and beautiful shapes of natural crystals and priceless nuggets of gold, silver and platinum. Learn what the Earth is made of - and how its rocks were formed, how early humans made the first flint tools and how diamonds and precious stones are cut, polished, and made into jewelry. Discover how prehistoric animals are preserved today as fossils, how volcanoes work, how rocks are formed from molten lava, how minerals and metals are mined and how pebbles on the seashore are worn down into sand, and much, much more!
Eyewitness Workbooks: Rocks & Minerals, 48 pages. DK CHILDREN; Workbook edition (June 16, 2008) Reading level: Ages 9-12. Perfect for getting ahead at school or just stimulating children's interest, this groundbreaking series of workbooks leaves the competition in the dust, with exciting subjects, 48 full-color pages, a turn-and-learn info wheel, and special carrying folders. Never before have there been workbooks with so many opportunities for fun and interactive learning!
Peterson First Guides: Rocks and Minerals, by Frederick H. Pough. 128 pages. Houghton Mifflin Harcourt (August 15, 1998) Written and designed for the beginner, this book describes and illustrates the most common and interesting rocks and minerals, from simple sandstone to exotic gems. Illustrated with dozens of beautiful color photographs, it tells how these rocks and minerals formed and how to identify them--and includes tips on collecting.
Rocks & Minerals, by Dougal Dixon. 160 pages. Fireside (August 15, 1992) Beginning with a history of the earth's formation and development, this book explores the substances that compose the planet, movements within the earth, the surface effects of weather and water, and underground landscapes. It shows you how to search for, identify, and extract samples of various rocks and minerals, and for each rock and mineral type there is a brief mineralogy and explanation of its locations. There are also sections on mapping, preparing, and curating specimens, and geological sites on the six continents. Packed with more than 200 full-color illustrations, this comprehensive guide is the essential practical companion for natural science enthusiasts everywhere.
Smithsonian Handbooks: Rocks and Minerals, by Chris Pellant. 256 pages. DK ADULT; 1st edition (September 1, 2002) The Smithsonian Handbook of Rocks and Minerals combines 600 vivid full--color photos with descriptions of more than 500 specimens. This authoritative and systematic photographic approach, with words never separated from pictures, marks a new generation of identification guides. Each entry combines a precise description with annotated photographs to highlight the chief characteristics of the rock or mineral and distinguishing features.
Field Guide to North American Rocks and Minerals, National Audubon Society. 856 pages. Knopf; 1st Edition (5th Printing) edition (May 12, 1979) Perfect for mountain climbers and hikers, this valuable reference covers more rocks and minerals in North America than any other available guide. 794 full-color photographs depict all the important rocks, gems, and minerals -- in many variations of color and crystal form -- and the natural environments in which they occur; written descriptions provide information on field marks, similar rocks and minerals, environment, areas of occurrence, and derivation of names. Includes a guide to mineral collecting and a list of rock-forming minerals
Gemstones, by Cally Hall. 160 pages. DK ADULT; 2 edition (May 15, 2002) Packed with more than 800 vivid full-color photographs of more than 130 varieties of cut and uncut stones, organic gemstones, and precious metals. With authoritative text, clear photography, and a systematic approach, this concise guide to identification enables you to recognize each gemstone instantly.
Gemstones of the World, by Walter Schumann. 272 pages. Sterling; 3 Rev Exp edition (January 1, 2007) Gemstones of the World is truly the single volume that every hobbyist, jeweler, jewelry maker, and rockhound needs: it's the cornerstone of the field. And this updated edition contains a host of new findings on "Gemstones for Collectors," additional gems in the "Table of Constants," and the "double fraction" figures that experts have long wanted-a very special new feature. All the gemstones are treated in their many variations: more than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough, natural, and its polished and cut renditions.