Manganbelyankinite

Where it forms, where it's found

Type locality: Pegmatite No. 31
Kedykverpakhk Mountain
Lovozersky District
Murmansk Oblast
Russia

3recorded occurrences

Source · OpenStreetMap

Physical

Hardness: 1Talc
2Gypsum
3Calcite
4Fluorite
5Apatite
6Orthoclase
7Quartz
8Topaz
9Corundum
10Diamond
Transparency: Transparent
Colour: Brownish black
Density: 2.54 g/cm³

Optical

Pleochroism: Weak

Crystallography

Comment: Amorphous

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
41NbNiobium Niobium 5 92.906 464.530
41.74%
8OOxygen Oxygen 21 15.999 335.979
30.19%
22TiTitanium Titanium 5 47.867 239.335
21.50%
25MnManganese Manganese 1 54.938 54.938
4.94%
1HHydrogen Hydrogen 18 1.008 18.144
1.63%
Total 1112.926 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From IMA formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
41NbNiobium	Niobium	5	92.906	464.530	41.74%
8OOxygen	Oxygen	21	15.999	335.979	30.19%
22TiTitanium	Titanium	5	47.867	239.335	21.50%
25MnManganese	Manganese	1	54.938	54.938	4.94%
1HHydrogen	Hydrogen	18	1.008	18.144	1.63%
	Total	1112.926	100.00%

Synonyms

Manganbelyankiniet

In other languages

German: Manganbelyankinit
Italian: Manganbelyankinite
Chinese: 铌钛锰石

Classification

Strunz

10th ed.

4.FM.25

4OxidesClass
4.FHydroxides (without V or U)Division
4.FMHydroxides with H₂O +- (OH); unclassifiedGroup
4.FM.25ManganbelyankiniteSpecies

Dana

8th ed.

08.07.08.02

08Multiple Oxides Containing Niobium, Tantalum or TitaniumClass
08.07MiscellaneousType
08.07.08Belyankinite GroupGroup
08.07.08.02ManganbelyankiniteSpecies

CIM

—

17.8.16

17Silicates Containing other AnionsClass
17.8Silicates with niobate or tantalateGroup
17.8.16ManganbelyankiniteSpecies

Literature, links & citation

Citations

1957Semenov, E.I. (1957) Oxides and hydroxides of titanium and niobium in the Lovozero alkaline massif. Trudy Institut Mineralogii, Geokhimii, Kristallokhim. Redkikh Elementov, Akademiia Nauk SSSR 1: 41-59 (in Russian). https://rruff.info/rruff_1.0/uploads/ANSSSR1_41.pdf or https://rruff.info/rruff_1.0/uploads/Trudy1_41.pdf
1958Fleischer, M. (1958) New Mineral Names. American Mineralogist, 43 (11-12). 1219-1225
2005(2005) Manganbelyankinite. Handbook of Mineralogy. Mineralogical Society of America

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Manganbelyankinite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/manganbelyankinite-2492},
  note      = {Accessed 2026-05-11}
}