The Mineralogical Society of Southern California

962nd Meeting


 November, 9th, 2018 at 7:30P.M. 


21st Century Jade: Why it’s Prized and How It’s Tested and Valued

Presented by Renée Newman 


 Pasadena City College 

Geology Department, E-Building, Room 220 

1570 E Colorado Blvd., Pasadena 


About us…

The Mineralogical Society of Southern California is dedicated to the dissemination of a general knowledge of the mineralogical and related earth sciences through the study and collecting of mineral specimens. Organized in 1931, it is the oldest mineralogical society in the western United States.
The MSSC is a scientific non-profit organization that actively supports the Pasadena City College Geology Department, its associated Dana Club,, and the Field Science Scholarship Fund. Support is also given to the San Bernardino County Museum of Natural History and Mindat.
The MSSC is affiliated with the California Federation of Mineralogical Societies and American Federation of Mineralogical Societies.


About the Program:  21st Century Jade: Why it’s Prized and How It’s Tested and Valued

Presented by Renée Newman 

Jadeite and nephrite prices are continuing to reach record highs at jewelry auctions. When gem materials go up in value and popularity, the desire to imitate and treat them increases. Some fakes are obvious, while others aren’t. In addition, treated jade, may be worth less than some fakes. In her presentation to our club, Newman will give practical tips on how to distinguish fake and treated jade from natural jade using examples of modern jade jewelry and carvings. Her presentation will help you: 

  • Understand why jade is so prized 
  • Tell the difference between jadeite and nephrite 
  • Determine which types of jadeite and nephrite are most valued. Their value factors are not the same. 
  • Detect fake jade using visual, tactile and auditory non-technical clues 
  • Recognize when to be suspicious that jade has been treated with chemicals 
  • Appreciate contemporary jade. 

Renée will be available before and after her presentation to autograph books. Bring cash or a check if you would like to purchase copies of them. Her Exotic Gems: Volume 4 book is the fourth in a series that explores the history, lore, evaluation, geographic sources and identifying properties of non-traditional gems. It describes with text and photos how to evaluate jade quality and detect imitations and dyed jade. 

Renée Newman developed her interest in gems in the early 1980s while conducting tours to Asia, South America and the South Pacific. Her passengers wanted to know how to judge the quality of the gems they saw so she signed up for a colored stone grading course at the GIA. She liked it so well she decided to get a GIA graduate gemologist diploma and then work at a wholesale firm in downtown Los Angeles evaluating gems and overseeing jewelry quality control. Armed with trade experience and gemological credentials, Renée decided to create books that showed readers how to visually evaluate the quality of gems. Her first book, the Diamond Ring Buying Guide, was published in 1989. Since that time, she has written twelve more books on gems and jewelry. They are used as gemology course textbooks, sales training tools, appraisal references and consumer guides. The Fourth Volume in her Exotic Gems Series features all types of jade from around the world. For more information about Renée and her books go to 

Upcoming Events

  • December 1: Annual Jewel Tunnel Open House 10AM-4PM
  • December 2 :Board Meeting at Bruce Carter’s house
  • December 14: Walton Wright: Plate Tectonics 2
  • January 19, 2019: Annual Banquet: Denise Nelson – “Treasures of Poland, Amber and Salt”
  • February 1,2 and 3, 2019: Micromineral Conference at the Fallbrook Mineral Museum
  • Field Trips, click here to go to field trip page

The MSSC is pleased to offer:

X-Dana Mineral Spreadsheet

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