Join date: Sep 3, 2020
Dec 13, 2017 ∙ 2 min
Genthelvite - rare from Sterling Hill, NJ
Genthelvite (with a hard "G") is not uncommon throughout the world but it is very rare at the Sterling Hill Zinc Mine in Ogdensberg, NJ....
Sep 1, 2016 ∙ 2 min
Sterling Hill Fluorescent Zincite
As I've posted before, I am a big fan of powerful, true 365nm UV light from LED flashlights. It allows me to find stuff that is...