This cluster is a good representative Eagle mine Pyrite showing typical striated pyritohedra with sharp

Agate is formed within cavities of volcanic rocks through a process of mineral deposition over time

8 inches (including stand)

4x2 inches

Grossular garnets are a variety of garnet known for their diverse range of colors

Shatter Cone Impactite | 70.6 grams | Steinheim Basin Impact Structure | Ries crater, Germany SO24 Tanzanite This cluster is a goodThis is a fantastic shatter cone from Germany weighing 70. 6 grams and measuring 77. 7x41. 8x25. 5 mm. Although not a meteorite, impactites and shatter cones are directly linked to them and their impacts. Shatter cones are evidence that the rock has been subjected to an extreme shock with very brief high pressures. Shatter cones are rare geological features that are only known to form in the bedrock beneath large meteorite impact craters. They have a