Peruvian Barite on Dolomite - Blue LED (magenta filter)

From Cerro Warihuyn Huanuco Dept. in Peru comes this 3" wide specimen.

 

Contains:

Barite (FL Red, Yellowish Blue >Blue, UVabc)

 

Shown under blue LED light. Photographed using a magenta filter (laser goggles).

 

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 Obsidian Days 2016, Hines, Oregon.

 

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