Naturally Occurring Glasses

Title: 
Naturally Occurring Glasses
Author/Artist: 
Olsen, Michael
Published In: 
American Scientific Glassblowers Society Symposium and Exhibition on the Art of Glassblowing, 34th Proceedings Toledo, Ohio: the society, 1989, pp. 49-51
Subjects: 
Bib ID: 
AI24631
Notes: 
Additional info: Milwaukee, WI, June 26-30, 1989