GadoliniteGadolinite

Gadolinite Value, Price, and Jewelry Information


This is not a terribly attractive gemstone, but faceted gems would be a tremendous rarity. The material is quite brittle, but there is no cleavage to cause problems in cutting. I do not know of the existence of a faceted gem at this writing.

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HomeGemstonesGadolinite Value, Price, and Jewelry Information

This is not a terribly attractive gemstone, but faceted gems would be a tremendous rarity. The material is quite brittle, but there is no cleavage to cause problems in cutting. I do not know of the existence of a faceted gem at this writing.

Gadolinite
WesternDevil from lt [GFDL or CC-BY-SA-3.0], from Wikimedia Commons

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Gadolinite Value

Streak: Greenish gray.

Optics:  a = 1.77-1.78; γ= 1.78-1.82.

Biaxial ( + ), 2V = 85°. Usually metamict and amorphous, hence isotropic.

Occurrence: Granites and granite pegmatites. Colorado; Texas; Arizona.

Greenland; Sweden; Norway; USSR; Japan; Switzerland; Australia.

Comments: This is not a terribly attractive gemstone, but faceted gems would be a tremendous rarity. The material is quite brittle, but there is no cleavage to cause problems in cutting. I do not know of the existence of a faceted gem at this writing.

Name: After the Swedish chemist, J. Gadolin.


Joel E. Arem, Ph.D., FGA

Dr. Joel E. Arem has more than 60 years of experience in the world of gems and minerals. After obtaining his Ph.D. in Mineralogy from Harvard University, he has published numerous books that are still among the most widely used references and guidebooks on crystals, gems and minerals in the world.

Co-founder and President of numerous organizations, Dr. Arem has enjoyed a lifelong career in mineralogy and gemology. He has been a Smithsonian scientist and Curator, a consultant to many well-known companies and institutions, and a prolific author and speaker. Although his main activities have been as a gem cutter and dealer, his focus has always been education. joelarem.com

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