Number of references: 11
See on mindat.org
See on rruff.info
Aliases: Wernerite
Luminescence
Fluorescence
Shortwave:
Red [1]
Longwave:
Yellow [4], Orange [2], Red [1], White [1]
Unknown excitation:
Yellow [1]
Phosphorescence/Afterglow
None reported
Tenebrescence/Photochromism:
Blue [1]
Activators
| Peak |
Excitation |
Activator |
Color |
Locality |
|
370nm |
S22- |
Orange |
Afghanistan |
Localities
Afghanistan
LW-Orange [1], TENEB-Blue [1]
Canada
Ontario
Bancroft area
LW-Yellow [1]
Québec
FL-Yellow [1]
Outaouais
Pontiac RCM
Otter Lake
LW-Yellow [1], SW-Red [1], LW-White [1]
USA
New Jersey
Sussex County
Franklin Mining District
Franklin
Franklin Mine
LW-Red [1], LW-Orange [1], LW-Yellow [1]
New York
St. Lawrence County
Balmat-Edwards Zinc Mining District
Edwards
LW-Yellow [1]
References
Pauline Colinet, Hannah Byron, Sami Vuori, Juha-Pekka Lehtio, Pekka Laukkanen, Ludo Van Goethem, Mika Lastusaari, Tangui Le Bahers. "The structural origin of the efficient photochromism in natural minerals." Proceedings of the National Academy of Sciences, 119(23):e2202487119, 2022. 10.1073/pnas.2202487119
- Afghanistan (LW-Orange, TENEB-Blue)
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
- Canada, Québec (FL-Yellow)
- USA, New Jersey, Sussex County, Franklin Mining District, Franklin, Franklin Mine (LW-Orange, LW-Red, LW-Yellow)
- Canada, Ontario, Bancroft area (LW-Yellow)
- Canada, Québec, Outaouais, Pontiac RCM, Otter Lake (LW-White, LW-Yellow, SW-Red)
- USA, New York, St. Lawrence County, Balmat-Edwards Zinc Mining District, Edwards (LW-Yellow)