Search Archived Mineral Specimens
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Esquire #8 claim, Big Creek, Fresno Co., California, United States
- Formula
- BaCa2Si3O9
- Size
- Miniature 5x3.5x3.3cm
- Special Info
- Fluorescent
- Special Info
- Signed Label
Very faint green to white crystal grains showing cleavages and a bright orange color under SW UV. Just about the entire area between the green arrows is Walstromite. At the blue arrow in a bit of yellow Fresnoite.
Walstromite is named in honor of Robert E. Walstrom (1937-2022), who discovered it while prospecting for barium. From Mindat: He has 12 minerals new to science to his credit, already published (2008), with more in the works. I never knew Bob real well, but from what I gather he was an amazing field collector as well as a great mineralogist.
Please see the provenance tab for Bob's signed label.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Esquire #8 claim, Big Creek, Fresno Co., California, United States
- Formula
- BaCa2Si3O9
- Size
- SmCabinet 6x4.5x2.5cm
- Special Info
- Fluorescent
- Special Info
- Signed Label
Everything between the green arrows is Walstromite, which glows orange under SW UV. The Walstromite is white to colorless or faint green and shows good cleavages. There is minor Bazirite and Titantaramellite in the specimen.
Walstromite is named in honor of Robert E. Walstrom (1937-2022), who discovered it while prospecting for barium. From Mindat: He has 12 minerals new to science to his credit, already published (2008), with more in the works. I never knew Bob real well, but from what I gather he was an amazing field collector as well as a great mineralogist.
Please see the provenance tab for Bob's signed label.
- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Esquire #7 claim, Big Creek, Fresno Co., California, United States
- Formula
- BaCa2Si3O9
- Size
- SmCabinet 7x4.5x3cm
- Special Info
- Type Locality
Sanbornite rich matrix with one side loaded with fluorecent orange Waltromite. The photos show the fluorescent nature of Walstromite and also some of the isolated crystal grains. Minor Gillespite on the back side.
- Availability
- Sold
- Locality
- Little Green Monster mine, Clay Canyon, Fairfield, Utah Co., Utah, United States
- Formula
- NaAl3(PO4)2(OH)4·2H2O
- Size
- Miniature 4.5x2.5x2cm
- Tagged
- phosphate
Aqua blue, translucent, pseudo-octahedral crystals to 1mm. This is a pretty nice specimen, considering that most of the LGM Wardite occurs as just a blue crust. These crystals are unusually distinct. Associated with yellow Crandallite and Apatite.
- Availability
- Sold
- Locality
- Rapid Creek, Yukon Territory, Canada
- Formula
- NaAl3(PO4)2(OH)4·2H2O
- Size
- Miniature 3.5x2.5x1.5cm
- Tagged
- phosphate
Superb 8-9mm striated crystals.
- Availability
- Sold
- Locality
- Iron Monarch mine, Iron Knob, South Australia, Australia
- Formula
- Mn7(PO4)2(OH)8
- Size
- Thumbnail 1.4x0.7x1.0cm
- Tagged
- phosphate
- Special Info
- Type Locality
Dark brownish red to orange flaky crystals less than 1mm. Good rich specimen and very rare. Excalibur label. Type and only locality.
