New Jersey Nepheline Syenite - UVc

 

From the Ordovician Beemerville Complex in northern NJ USA comes this 5" wide specimen.

 

Contains:

Nepheline (FL Orange/Red >UVab/c)

? (FL Orange >UVc)

 

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"

 

Collected by Gordon Czop

 

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

Done