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Walstromite

Number of references: 6

See on mindat.org

See on rruff.info

Luminescence

Fluorescence

Shortwave: Orange [2], Pink [1]
Longwave: Orange [1], Pink [1]
Unknown excitation: Yes [1]

Phosphorescence/Afterglow

None reported

Activators

Peak Excitation Activator Color Locality
363nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
384nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
419nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
425nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
434nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
450nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE; Tm3+ Big Creek
459nm (Δ=Narrow, τ=75-100us) 355nm (T=300K) Trivalent REE Big Creek
480nm (Δ=50nm, τ=650ns) 355nm (T=300K) Eu2+ Blue Big Creek
482nm (Δ=Narrow) 437nm (T=300K) Trivalent REE Big Creek
491nm (Δ=Narrow) 437nm (T=300K) Trivalent REE Big Creek
564nm (Δ=Narrow) 437nm (T=300K) Sm3+ Big Creek
567nm (Δ=Narrow) 437nm (T=300K) Sm3+ Big Creek
590nm (Δ=50nm, τ=1.5ms) 355nm (T=300K) Mn2+ Orange Big Creek
599nm (Δ=Narrow) 437nm (T=300K) Sm3+ Big Creek
603nm (Δ=Narrow) 437nm (T=300K) Sm3+ Big Creek
645nm (Δ=Narrow) 437nm (T=300K) Sm3+ Big Creek

Localities

USA
    California
        Fresno County
            FL-Yes [1], SW-Orange [1], SW-Pink [1], LW-Orange [1], LW-Pink [1]
            Big Creek-Rush Creek Mining District
                Big Creek
                    SW-Orange [1]

References

Michael Gaft, H. Yeates, Lev Nagli. "Laser-induced time-resolved luminescence of natural margarosanite Pb(Ca,Mn)2Si3O9, swedenborgite NaBe4SbO7 and walstromite BaCa2Si3O9." European Journal of Mineralogy, 25(1):71-77, 2013. 10.1127/0935-1221/2013/0025-2260

Manuel Robbins. "Fluorescent Forum. Franklin's Fluorescent Minerals: Can They Be Found Elsewhere?." Rocks & Minerals, 60(5):235-244, 1985. 10.1080/00357529.1985.11764415