SOLD | Kristallquarzkugel | Brasilien gold This extraordinary discovery resulted from

This extraordinary discovery resulted from the excavation of a skeleton in 1902 in the Hell Creek Formation of Montana

recurved spines

fine-grained or dense variety of the quartz mineral chert that exhibits various colors

The petrified forests in the western United States consist of silicified wood

Additional Information: Quartz is one of the most common minerals

SOLD | Kristallquarzkugel | Brasilien gold This extraordinary discovery resulted fromOrigin: Brazil Size: D38cm Description: Cut and polished sphere to reveal the internal structure of this beautiful quartz formation, can be lightened from below. Additional Information: Quartz, a common mineral composed primarily of silica or silicon dioxide (SiO2). Minor impurities such as lithium, sodium, potassium and titanium may be present. Quartz has attracted attention since the earliest times; Water clear crystals were known to the ancient