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Ottensite

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Qinglong (Dachang) Sb-Au deposit, Qinglong Co., Qianxi'nan Autonomous Prefecture, Guizhou Province, China
© Michael Cline

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Formula:
(Na,K)
 
3
[Sb
 
2
O
 
3
]
 
3
[SbS
 
3
]· 3H
 
2
O
System:HexagonalColour:red-brown
Hardness:3½
Name:Named in honour of German mineral dealer and specialist in Chinese minerals Berthold Ottens (born 1942).


Na-dominant analogue of Cetineite

Classification of Ottensite

IMA status:Approved 2006
Strunz 8th edition ID:2/F.11-25
Strunz 9th edition ID:2.FD.15
Nickel-Strunz 10th (pending) edition ID:2.MA.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
M : Oxysulfosalts
A : Oxysulfosalts of Alkalies and Alkali Earths
Dana 8th edition ID:2.13.3.2

2 : SULFIDES
13 : Oxysulfides
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Type Occurrence of Ottensite

Type Locality:Qinglong (Dachang) Sb-Au deposit, Qinglong Co., Qianxi'nan Autonomous Prefecture, Guizhou Province, China
Associated Minerals at type locality:
StibniteMopungiteFluorite

Physical Properties of Ottensite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:red-brown
Streak:yellow-brown
Hardness (Mohs):3½
Tenacity:Brittle
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (calculated):4.14 g/cm3

Crystallography of Ottensite

Crystal System:Hexagonal
Class (H-M):6 - Pyramidal
Space Group:P63
Cell Parameters:a = 14.1758(2) Å, c = 5.5712(1) Å
Ratio:a:c = 1 : 0.393
Unit Cell Volume:V 969.57 ų
Z:2
Morphology:spherules
X-Ray Powder Diffraction:
d-spacingIntensity
12.29(60)
4.64(51)
4.13(52)
3.406(57)
2.991(77)
2.906(100)
2.679(51)

Optical Data of Ottensite

Type:Uniaxial (+)
RI values: n = 1.99
Maximum Birefringence:δ = 0.000

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Pleochroism:Weak
Comments:Orange-red
Red
Comments:n from Gladstone-Dale calculation.

Chemical Properties of Ottensite

Formula:
(Na,K)
 
3
[Sb
 
2
O
 
3
]
 
3
[SbS
 
3
]· 3H
 
2
O
All elements listed in formula:H, K, Na, O, S, Sb

Relationship of Ottensite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.MA.05Cetineite
(K,Na)
 
6
[Sb
 
2
O
 
3
]
 
6
[SbS
 
3
]
 
2
[(H
 
2
O)
 
6-x
(OH)
 
x
] (x = 0.5)
2.MA.10Sarabauite
CaSb
 
10
O
 
10
S
 
6

Other Names for Ottensite

Synonyms:
IMA2006-014
Other Languages:
German:Ottensit

Other Information

Fluorescence in UV light:Non-fluorescent
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Ottensite

Reference List:J. Sejkora & J. Hyrsl (2007) "Ottensite, a new mineral from Qinglong, Guizhou Province, China." Mineralogical Record 38:77-81.

M.J.Origlieri, T.A. Laetsch & R.T.Downs (2007): A note on the paragenesis of ottensite," Mineralogical Record 38:83-84.

Internet Links for Ottensite

Search Engines:
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    • External Links:
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  • Look for Ottensite on Wikipedia
  • Look for Ottensite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Ottensite in the Natural History Museum (London) online catalogue
    • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • rare and unusual minerals mainly crystallized
  • Find Ottensite on www.crystalclassics.co.uk
  • Wendel Minerals - Auktion & Shop
  • Wilensky Fine Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy fine minerals and gemstones from Pala International
  • Fine Minerals from Dan Weinrich Minerals
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  • Buy from David K Joyce minerals
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    Localities for Ottensite

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    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    China
     
    • Guizhou Province
      • Qianxi'nan Autonomous Prefecture
        • Qinglong Co.
    		http://www.geo.vu.nl/~ima-cnmmn/minerals06-06.pdf
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the 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 hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 10th Nov 2009 19:37:49