- Benitoite (Barium Titanium Silicate)
Images of the rare gemstone and mineral specimen.
mineral.galleries.com/minerals/silicate/benitoit/benitoit.htm
- Benitoite Mineral Data
General information, physical properties, and images.
webmineral.com/data/Benitoite.shtml
- Exhibit on Benitoite
Everything you ever wanted to know about California's unique state gem, including its discovery early in the 20th century.
www.mip.berkeley.edu/geology/benitoite
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