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Udachnaya-Vostochnaya pipe (Udachnaya pipe), Daldyn, Daldyn-Alakit kimberlite field, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia
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Diamond
Udachnaya-Vostochnaya pipe, Daldyn, Daldyn-Alakit kimberlite field, Sakha Republic, Eastern-Siberian Region, Russia

Photo: Karl Volkman 09/05
Latitude: 66°26'N
Longitude: 112°19'E
 
 
Two intersecting kimberlite pipes, intruded into Lower Ordovician limestone. The pipes contain diamond eclogite, dunite and peridotite xenoliths and are mined in an open pit more than 600 metres deep.
Discovered in 1955. As of 2010, Udachnaya pipe is controlled by Russian diamond company Alrosa, which planned to halt open-pit mining in favour of underground mining in 2010.

Eclogites are rich in intergranular sulfides (pyrrhotite, pyrite, pentlandite, chalcopyrite, cubanite, djerfisherite) associated with magnetite.

Mineral List

Aegirine-augite
'Aluminobarroisite'
Amakinite (TL)
'Apatite'
Barroisite
Calcite
Chalcopyrite
'Chlorite Group'
Chromite
Chromium
'Clinopyroxene Subgroup'
Copper
Corundum
Cubanite
Diamond
Diopside
var: Chromian Diopside
Djerfisherite
Enstatite
Eskolaite
Forsterite
'Glass'
Graphite
Grossular
Halite
Hercynite
var: Picotite

Humite
Ilmenite
Iowaite
Iron
Kyanite
Magnetite
Monticellite
'Olivine'
Omphacite
Pentlandite
Periclase
Perovskite
Phlogopite
Pyrite
Pyrope
Pyrrhotite
Pyrrhotite
var: Nickeloan Pyrrhotite

Rutile
'Serpentine Group'
Shortite
Sodalite
Spinel
var: Chromspinel
Sylvite
'Tantalum'
Tetraferriphlogopite
Tochilinite
Troilite
'UM1998-03-Cl:Tl'
Zemkorite (TL)


56 entries listed. 43 valid minerals. 2 type localities (valid minerals).

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References

- Boyd, F.R., Pokhilenko, N.P., Pearson, D.G., Mertzman, S.A., Sobolev, N.V., and Finger, L.W. (1997): Composition of the Siberian cratonic mantle: evidence from Udachnaya peridotite xenoliths. Contributions to Mineralogy and Petrology 128, 228-246.

External Links

- http://geo.web.ru/druza/l-Udachnaya.htm A lot of photos (specimens from different collections) and maps (in Russian)
- http://en.wikipedia.org/wiki/Udachnaya_pipe

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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