Rockyard Quartz/Chalcedony Geode - UVabc

 

From the local rockyard comes this 3" wide specimen.

 

Contains:

Chalcedony (FL Green >UVbc)

 

Shown under UVabc light.

 

Key:

WL = White light (halogen + LED)

FL = Fluoresces

PHOS = Phosporescent

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

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

 

Obtained from Highland Rocks and Gems' Rockyard, Burns OR, USA.

 

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

 

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

Done