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Manganese Oxides

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CSW766940

Manganese Oxides

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Description
Locality: 
Mibladen, Midelt Province, Drâa-Tafilalet Region, Morocco
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3.5 cm
Weight: 
72.00gr
Description

Calcite matrix with inclusions of dark grey manganese oxide dendrites. Please note that every care will be taken when posting this specimen but some damage to the dendrites will be inevitable as they are very delicate.

Mineral Data
What's on the rock

Manganese Oxides

Synonym Of: 

Akhtenskite

Formula: 
ε-Mn4+O2
Strunz: 
4.DB.15b
Hardness: 
0.0

Asbolane

Formula: 
(Ni,Co)2-xMn4+(O,OH)4·nH2O
Strunz: 
4.FL.30
Hardness: 
0.0

Birnessite

Formula: 
(Na,Ca)0.5(Mn4+,Mn3+)2O4·1.5H2O
Strunz: 
4.FL.45
Hardness: 
1.5

Coronadite

Formula: 
Pb(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.5 - 5.0

Cryptomelane

Formula: 
K(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Hardness: 
5.0 - 6.5

Feitknechtite

Formula: 
Mn3+O(OH)
Strunz: 
4.FE.25
Hardness: 
0.0

Groutite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.10
Hardness: 
3.5 - 4.0

Hausmannite

Formula: 
Mn2+Mn3+2O4
Strunz: 
4.BB.10
Hardness: 
5.5

Hollandite

Formula: 
Ba(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.0 - 6.0

Manganite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.15
Hardness: 
4.0

Psilomelane

Pyrochroite

Formula: 
Mn(OH)2
Strunz: 
4.FE.05
Hardness: 
2.5 - 3.0

Pyrolusite

Formula: 
MnO2
Strunz: 
4.DB.05
Hardness: 
2.0 - 6.5

Ramsdellite

Formula: 
Mn4+O2
Strunz: 
4.DB.15a
Hardness: 
3.0

Ranciéite

Formula: 
(Ca,Mn)Mn4O9·3H2O
Strunz: 
4.FL.40
Hardness: 
2.5 - 3.0

Romanèchite

Formula: 
(Ba,H2O)2Mn5O10
Strunz: 
4.DK.10
Hardness: 
5.0 - 6.0

Todorokite

Formula: 
(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12·3H2O
Strunz: 
4.DK.10
Hardness: 
1.5

Wad

Hardness: 
1 - 6.5

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions. It goes without saying that maintaining high standards in both specimen quality and customer service are extremely important to me. If for any reason you are not happy with any aspect of your transaction then please let me know as soon as possible, ideally within 1 week of receiving your specimen. I will happily do all in my power to resolve the situation to your satisfaction. If your specimen is damaged upon delivery simply send me some photos to verify this and I'll provide you with a full refund or a replacement specimen, whichever you prefer. 

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