Moldavite 2.68g Angel chime 
Locale: Marouškovo Pole, Czech Republic
Size: 30 x 23 x 10 mm (curved) actual height is 5mm
State: Intact, undamaged
...
Moldavite is a rare natural glass formed about 15 million years ago when a meteorite struck the Nördlinger Ries in Germany. The heat from the impact melted the surface rock and sent it into the sky where it cooled as it fell back to earth as green tektite.