SOLD | Kristallquarzkugel | Brasilien gold fossil formed by the penetration

fossil formed by the penetration of minerals into cavities between and within cells of natural wood

recurved spines

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

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220 million years

SOLD | Kristallquarzkugel | Brasilien gold fossil formed by the penetrationOrigin: 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