Crystals and their structures  [motion picture] / 
collaborator J. Arthur Campbell 
 - New York :  Modern Learning Aids,  1964 
 - 1 film reel (22 min.) :  sd., b&w. ;  16 mm. + notes 
<br/><br/> Typical properties of crystals are shown with single crystals of sodium chloride and quartz.  Cleavage, melting points and models of crystals are compared to those glasses.  backup in U-matic  Bahan rosak (Lupus) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crystals