Synthetic Fluorescent Mineral Experiment: Carbonated Pseudo Schrockingerite - WL

FOV: 3" wide.

 

Uranyl nitrate solution was used to hydrate 15mL of DAP Plaster of Paris mix. The result showed hardly any green uranyl fluorescence, what could be seen was yellowish green. The plaster was then rehydrated using a concentrated sodium carbonate solution. The water was evaporated and the mixture was then calcined at ~150 degC for 4 hours in an oven. It was then rehydrated using a sodium carbonate solution. The plaster mix bubbled for about a half hour releasing much CO2 gas. After drying a coating of yellowish crystals formed on the surface.

 

Compare to:

www.mindat.org/photo-299521.html

 

See:

rruff.info/uploads/CM31_167.pdf

 

Contains:

Pseudo Schrockingerite (FL Blue-green >BL/UVabc)

 

Shown under white light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosphorescent

Blue = 450nm,

UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)

'>' = "stimulated by:", '!' = "bright", '~' = "dim"

 

Carbonated Pseudo Schrockingerite

14Nov2015

 

Much appreciation to Gordon Czop for the uranyl nitrate.

 

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Photostream best viewed in Lightbox mode (in the dark).

 

18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps

Done