IGS Background

Simpsonite Value, Price, and Jewelry Information


Simpsonite is an extremely rare gemstone. The material from Western Australia is bright yellow-orange and very beautiful. The mineral is hard and durable, with no cleavage, and could easily become a popular gemstone if it were more abundant. Gems over 1 carat should be considered extremely rare because clean material is a very small percentage of the limited supply of simpsonite that has been found.

HomeGemstonesSimpsonite Value, Price, and Jewelry Information
By Joel E. Arem, Ph.D., FGA, updated on

Optics:o= 2.034; e=1.976.

Uniaxial (-).

Occurrence: In granite pegmatites, usually with biotite.

Bikita, Zimbabwe; Alto do Giz, Ecuador; Kola Peninsula, USSR.

Onca and Paraiba, Brazil: facetable material.

Tabba Tabba. Western Australia: facetable yellowish crystals.

Comments: Simpsonite is an extremely rare gemstone. The material from Western Australia is bright yellow-orange and very beautiful. The mineral is hard and durable, with no cleavage, and could easily become a popular gemstone if it were more abundant. Gems over 1 carat should be considered extremely rare because clean material is a very small percentage of the limited supply of simpsonite that has been found.

Name: After Dr. E. S. Simpson, former government mineralogist of Western Australia.

Never Stop Learning

When you join the IGS community, you get trusted diamond & gemstone information when you need it.

Become a Member

Get Gemology Insights

Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!