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Manganese Biominerals (Todorokite, Romanechite, Birnessite)
Manganese Biominerals (Todorokite, Romanechite, Birnessite)
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Manganese Biominerals (Todorokite, Romanechite, Birnessite) (Ref: CHESA-38)

Chesapeake Bay, Calvert County, Maryland, USA
80mm x 80mm x 60mm
minID: GR6-1GE
This is a Manganese Biominerals (Todorokite, Romanechite, Birnessite) from Chesapeake Bay, Calvert County, Maryland, USA. 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.
From: The Arkenstone
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See Also

Manganese Biominerals (Todorokite, Romanechite, Birnessite)
Chesapeake Bay, Calvert County, Maryland, USA
$900
50mm x 40mm x 40mm
From: The Arkenstone
Manganese Biominerals (Todorokite, Romanechite, Birnessite)
Chesapeake Bay, Calvert County, Maryland, USA
$1250
110mm x 30mm x 30mm
From: The Arkenstone
Manganese Biominerals (Todorokite, Romanechite, Birnessite)
Chesapeake Bay, Calvert County, Maryland, USA
$400
70mm x 10mm x 10mm
From: The Arkenstone
Manganese Biominerals (Todorokite, Romanechite, Birnessite)
Chesapeake Bay, Calvert County, Maryland, USA
$350
60mm x 40mm x 20mm
From: The Arkenstone
Todorokite
Chesapeake Bay, Calvert Co., Maryland, USA
$900
30mm x 20mm
From: The Arkenstone
Copper (spinel-twinned)
Wolverine Mine, Kearsarge Lode, Houghton County, Michigan, USA
$950
70mm x 10mm x 10mm
From: The Arkenstone
Vanadinite
Pachecho Claims, Yuma County, Arizona, USA
$950
10mm x 10mm x 10mm
From: The Arkenstone
Wulfenite
Schultz Claim, Mammoth District, Tiger, Pinal County, Arizona, USA
$950
20mm x 10mm
From: The Arkenstone
Baryte
Bookcliffs, Grand Junction, Mesa County, Colorado, USA
$950
20mm x 10mm
From: The Arkenstone
Sylvite with Halite
Kerr McGee Mine, Carlsbad Potash District, Eddy County, New Mexico, USA
$950
30mm x 20mm x 20mm
From: The Arkenstone
Copper
Osceola Mine, Shaft #20, Houghton County, Michigan, USA
$900
60mm x 30mm x 20mm
From: The Arkenstone
Wulfenite
Red Cloud Mine, La Paz County, Arizona, USA
$900
20mm x 20mm
From: The Arkenstone
Wavellite
Avant Mine, Garland County, Arkansas, USA
$900
100mm x 50mm x 50mm
From: The Arkenstone
Chrysocolla ( pseudo Gypsum? )
Ray Mine, Ray District, near Kearney, Dripping Springs Mts., Pinal County, Arizona, USA
$895
124mm x 92mm x 50mm
From: Bob Griffis Minerals
Chrysocolla covered with Quartz
Ray Mine, Ray District, near Kearney, Dripping Springs Mts., Pinal County, Arizona, USA
$875
130mm x 122mm x 61mm
From: Bob Griffis Minerals
* price is an approximate conversion and may not be accurate.

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