Introduction to Crystallography and Mineral Crystal Systems
Written by Mike Howard - Illustrated by Darcy Howard
Part 1: Introduction Part 2: Crystal Forms and Symmetry Classes Part 3: The Cubic (Isometric) System Part 4: The Tetragonal System Part 5: The Orthorhombic System Part 6: The Hexagonal System Part 7: The Monoclinic System Part 8: The Triclinic System Part 9: Summary and Conclusion, Further Reading
About the Authors... Mike Howard JMichaelH@aol.com Darcy Howard DHoward954@aol.com Mike has been a mineral collector for over 30 years, the last 22 of which he has been employeed by the Arkansas Geological Commission as a geologist. Intrigued by crystal forms and how they relate to minerals and the stories they tell about mineral formation, he is most interested in crystallized specimens, particularly from Arkansas. He has worked on a variety of mineral-related projects in the state and especially enjoys leading field trips for college mineralogy classes to his favorite collecting spot -- Magnet Cove. Darcy is a scientific illustrator and commercial artist. Specializing in airbrush technique, she also works in electronic and traditional media. Darcy studied art and medicine, and is associated with geology by marriage. A former employee of both the medical profession and state government, she is now a freelance work-at-home mom who designs and produces the Geology Collector's Series T Shirts under the Friend of the World (tm) tag line and philosophy. Mike and Darcy are residents of Arkansas, which is a world famous locality for quartz crystals and many other minerals. Even diamonds can be collected in Arkansas, and many rockhounds enjoy collecting trips and vacations there. If you're interested in Arkansas collecting and minerals, be sure and check out the best Arkansas rockhound resource on the WWW, Mike and Darcy's Rockhounding Arkansas.