Synthetic Fluorescent Mineral: Calcium Sulfide - UVc

 

FOV: 4" wide.

 

Calcium sulfide made by heating calcium carbonate with sulfur in molten salt. Manganese and lead were added as activators. The sample on the piece of scoria and the sample on the lower left were made using hardware store sulfur. The sample on the lower right was made using chemical supply store sulfur.

 

The mineralogical form of calcium sulfide is oldhamite. It is found predominately in meteorites.

 

Contains:

CaS:Mn2+ (FL+PHOS Orange >UVabc!)

 

Shown under UVc light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosporescent

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

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

 

Series best viewed in Light Box mode using Right and Left arrows to navigate.

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

 

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

 

...\FL min Experiments\Group II Sulfides\CaS salt on scoria

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