rock fulgurite Directory References Contents Ask the Chatbot a Question rock fulgurite mineral Ask the Chatbot a Question Learn about this topic in these articles:varieties of fulgurite In fulgurite>Rock fulgurites, the other variety, are thin, glassy crusts on rocks. They generally occur on mountain summits, as at Toluca, Mex., and Mt. Thielsen, Oregon. Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.
