The 40th annual gem, jewelry, fossil and mineral show will have about 30 national vendors with both fine and costume jewelry,and a complete line of lapadary materials, specimens, and equipment. There will be educational demonstrations and displays, including a special "rock table" which will show an elegant dinner setting consisting of natural rocks and minerals that could be mistaken for food, and a facinating display of fluorescent rocks. There will be activities for children to collect gems and specimens.