B butcher In Remembrance, Nov. 2023 Supporting Member Moderator Emeritus Joined Jan 6, 2008 Messages 10,086 Location Pacific NW Jan 4, 2019 #81 Uv light and the rocks glow. https://geology.com/articles/fluorescent-minerals/ https://en.wikipedia.org/wiki/Fluorite
Uv light and the rocks glow. https://geology.com/articles/fluorescent-minerals/ https://en.wikipedia.org/wiki/Fluorite
g_axelsson Administrator Staff member Administrator Moderator Joined Nov 17, 2007 Messages 5,525 Location Sweden Jan 4, 2019 #82 Not all fluorite displays fluorescence and a whole lot of other minerals does so it isn't a very good indicator. Göran
Not all fluorite displays fluorescence and a whole lot of other minerals does so it isn't a very good indicator. Göran