Oregon Fire Opal - WL

From the Owyhee Canyon, OR USA comes this 2.5" wide specimen of fire opal.

 

Shown under white light.

 

Key:

WL = White light

FL = Fluoresces

PHOS = Phosporescent

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

'>' = "stimulated by:"

 

Obtained from Obsidian Days 2015, Hines, OR USA.

 

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Done