Franklin Calcite, Willemite, Sphalerite - UVb

 

From Franklin, NJ USA comes this 4" wide specimen.

 

Contains:

Calcite (FL Pink,Red >UVb,c)

Willemite (FL Green >UVabc)

Sphalerite (FL+PHOS Orange >UVab)

 

Shown under UVb 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"

 

Obtained from Arizona Ultraviolet

 

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

Done