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Walstromite

- Formula
- BaCa2Si3O9
- Crystal System
- Triclinic
- Crystal Habit
- Granular
- Cleavage
- Perfect, Perfect, Very Good
- Luster
- Vitreous - Pearly
- Color
- colorless, white
- Streak
- white
- Class
- Triclinic - Pinacoidal
- Hardness
- 3.5
- WebMineral
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Walstromite from Esquire #7 claim, Big Creek, Fresno Co., California, United States

- Special Info
- Type Locality
Rich specimen from the type locality out of a handful worldwide localities. Walstromite, named after Robert Walstrom of California, is another barium silicate found in barium rich metamorphic rock. It is fluorescent yellow to orange, which aids in the identification. It is white to colorless with a perfect cleavage.
Walstromite from Esquire #8 claim, Big Creek, Fresno Co., California, United States
- Special Info
- Fluorescent
Faint green large plates of Walstromite to 1.5cm which gives a nice orange response to LW and SW UV. Signed label from the man who the mineral is named after, Robert E. Walstrom. Robert mined these specimens and brought them to market.