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Calcite Stalactite Malachite 521 million years old

SKU: 69357040811

4.6
USD61.00 USD107.00

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Description

521 million years old

The spectacular display of colors these specimens display can be formed by two different geological processes: the oxidation of pyrite causing ultra-thin layers of iron oxide to form on the surface

pyrite is an abundant sulfide mineral that despite some similarities can easily be distinguished from actual gold by its crystal form (typically cuboidal) and being much harder whereas gold is soft and malleable

Malachite is known for its deep green coloration

Metacanthian Trilibite from the Mid Devonian Period

Calcite Stalactite Malachite 521 million years old

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