Peruvian Pyrite Cluster - SOLD 2.84" manmade Knight's Sword

Knight's Sword

The sediment layer from which amber is mined can be dated radiometrically using zircons

These branching patterns are made of manganese oxides and commonly form on the surface of sandstones

modern isotopic dating reveals a geochemical makeup that matches with herbivores

Kazakhstan

Peruvian Pyrite Cluster - SOLD 2.84" manmade Knight's SwordBetter known as Fool's Gold, pyrite is an iron sulfide compound with a gold like appearance, hence its nickname. Unlike gold however, pyrite often forms in cubic crystals, an expression of the mineral's cube shaped atomic structure. This specimen is a Peruvian Pyrite Cluster, measuring 2. 84". It might not be worth its weight in gold, but this mineral has been valued since prehistory when pyrite was used as a fire starter by Neanderthals and our other