Sign In  Gemology Courses  Gemology 011 Introductory Colored
Stones Units: 4 | Class hours: 48 lecture/48 Laboratory |
Prerequisite: None  Discover the unique qualities of a dazzling
array of colored gemstones, and use our full gemological lab to
identify stones from our extensive collection. Learn to use a
variety of gemological testing instruments, including the
gemological microscope, refractometer, polariscope, dichroscope,
specific gravity fluids, interference sphere, spectroscope,
Chelsea and other assorted filters, short wave and long wave
light, and monochromatic light. Topics covered include:
Defining a mineral and a gemstone Classification by formation
The 6 crystal systems Physical properties of colored stones
Specific gravity Groups, species and varieties The physics of
gemstones The optical qualities of gemstones Double refraction
Instructor: Lothar Vallot   Gemology 012 Advanced Colored Stones
Advanced identification, appreciation and evaluation of colored
gemstones. Further your understandin