Updated 2d ago
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Manganese Biominerals (Todorokite, Romanechite, Birnessite)$1,250.00
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Chesapeake biominerals, including Hollandite, Todorokite, Romanechite, Birnessite, and other unusual manganese and iron species, form when metal-rich subsurface waters emerge from the face of the cliffs along the western shore of Chesapeake Bay. Microbes exploit the chemical richness of the waters by oxidizing the metals and precipitating minerals in beautifully sculpted masses. The resulting specimens containing mixed amounts of these related species, such as those you see here, are among the finest examples of their style anywhere in the world and are unique in their aesthetic appeal and scientific interest. A portion of all sales goes to support the study of Chesapeake Bay geology through the laboratory of Dr. Robert Hazen. Among the most distinctive specimens from the new find are mineralized arthropod burrows and helical burrows occasionally found in the Miocene sediments of southern Maryland. This piece seems to have formed as such a replacement.
Product details
Species
SizeCabinet
Dimensions11.5 x 3.6 x 3.5 cm
Locality
SKUCHESA-01
Listed on10/23/2024
Comments
Known provenance
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