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230" Viking arrowhead mounted as a pendant necklace
making for a stunning natural work of art in each rock
“Variability and Evolutionary Rate in the Oreodonts
13951 is a lunar feldspathic breccia
the plane allowed the average person to experience the thrill of flight
Petrified Lightning - 2.647" Saharan Fulgurite fireopal 230" Viking arrowhead mounted asAbove: Front of the Specimen Card. When lightning strikes dry sand, the intense heat melts and fuses the silica creating tubes of rough glass called fulgurites. The process happens quickly, often trapping molecules from the surrounding atmosphere inside the walls of the impact tube. These natural time capsules allow scientists to study the composition of ancient climates. This specimen is a 2. 647" fulgurite collected in the Sahara Desert. Originally
