M Crawford (Post by M Cole)
Apr 3, 2017
I am still exploring my collection with the [new, very powerful 365nm] UV LED lights. This is Hodgkinsonite, Willemite, and Franklinite from Franklin, New Jersey. The first picture is LW, the second is white light and the third is MW. The response of the Hodgkinsonite is much weaker in MW. There is no glow of the Hodgkinsonite in SW