| Topic | Date Posted | Pages | Size (kb) |
| Summary of Physical Properties, Color and Phenomena | 3-7-98 | 2 | 4 |
| The six crystal systems | 3-12-98 | 1 | 46 |
| Keywords/Concepts for 1st Hour Exam | 3-7-98 | 1 | 3 |
| Table of Hardness, S.G. and R.I. for Some Common Gem Minerals | 3-7-98 | 1 | 3 |
| Refraction of Light in Gems and Minerals | 9-21-11 | 4 | 264 |
| Snell's Law and Critical Angle | 3-7-98 | 1 | 8 |
| Keywords/Concept for 2nd Hour Exam | 10-20-08 | 1 | 2 |
| Summary Tables of Optical Properties and Gem Instruments | 3-7-98 | 1 | 3 |
| Outline of Treatments and Enhancements | 3-7-98 | 3 | 7 |
| Treatment Tales | 2-12-99 | 1 | 8 |
| Outline for Geology of Gem Deposits | 3-7-98 | 3 | 9 |
| Introduction to Cabochons | 8-9-09 | 3 | 44 |
| Most of the above files are in Adobe PDF format. They require the Adobe Acrobat Reader (Free!) to view and print. |
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