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Birnessite : (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O, Todorokite : (Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12·3H2O | |
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KCON claim, USA-4, Clarion-Clipperton Zone, Pacific Ocean A 2.5 cm nodule consisting of intermixed birnessite and todorokite, recovered from approximately 4570 meters. S271-06 Excalibur Mineral specimen. |
| © 2008, JGW | Photo ID: 146952 View Count: 146 |
Gordaite : NaZn4[(OH)6|SO4|Cl] · 6H2O | |
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Juan de Fuca Ridge complex, East Pacific Rise, Pacific Ocean A white tabular crystal of Gordaite on Sphalerite. Picture size 1 mm. Photographer Thomas Witzke. |
| © Thomas Witzke | Photo ID: 13235 View Count: 429 |
Wad | |
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KCON claim, USA-4, Clarion-Clipperton Zone, Pacific Ocean Ferromanganese nodule known also as 'pelagite' of 30 mm in diameter. Photo and collection Antonio Borrelli |
| © Antonio Borrelli | Photo ID: 68454 View Count: 872 |
Wurtzite : (Zn,Fe)S | |
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Manus Basin, Bismarck Sea, Pacific Ocean Clustered groups of hexagonal pyramidal crystals. FOV 2mm. Collected by a deep-sea research submersible. Chuck Adan collection and photo. |
| © Chuck Adan | Photo ID: 119795 View Count: 138 |
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