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Hydroxylclinohumite

Big Photo

Zelentsovskaya Pit, Kusinsk Fe-Ti-V-deposit, Zlatoust, Chelyabinsk Oblast', Urals Region, Russia
© Knut Eldjarn

Show Hydroxylclinohumite Photos (2)
Formula:
Mg
 
9
[(OH,F)
 
2
|(SiO
 
4
)
 
4
]
System:MonoclinicColour:Pale yellow to ...
Lustre:Vitreous, DullHardness:6½
Name:In allusion to its chemical composition and crystal structure as the HYDROXYL-dominant, monoCLINic member of the group and its relationship to humite which was named after Sir Abraham Hume (1749-1838), English connoisseur and collector of gems, minerals and artwork.


Humite Group

Classification of Hydroxylclinohumite

IMA status:Approved 1998
Strunz 8th edition ID:8/B.04-42
Nickel-Strunz 10th (pending) edition ID:9.AF.55

9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
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Type Occurrence of Hydroxylclinohumite

Type Locality:Zelentsovskaya Pit, Kusinsk Fe-Ti-V-deposit, Zlatoust, Chelyabinsk Oblast', Urals Region, Russia

Physical Properties of Hydroxylclinohumite

Lustre:Vitreous, Dull
Colour:Pale yellow to orange-yellow, almost colourless.
Streak:White
Hardness (Mohs):6½

Crystallography of Hydroxylclinohumite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 13.6894Å, b = 4.748Å, c = 10.273Å
β = 100.72°
Ratio:a:b:c = 2.883 : 1 : 2.164
Unit Cell Volume:V 656.06 ų
Z:3
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Hydroxylclinohumite

Type:Biaxial (+)
RI values: nα = 1.631 nβ = 1.641 nγ = 1.664
2V:Measured: 70° , Calculated: 68°
Maximum Birefringence:δ = 0.033

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:weak

Chemical Properties of Hydroxylclinohumite

Formula:
Mg
 
9
[(OH,F)
 
2
|(SiO
 
4
)
 
4
]
Essential elements:H, Mg, O, Si
All elements listed in formula:F, H, Mg, O, Si

Relationship of Hydroxylclinohumite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.AF.05Sillimanite
Al
 
2
[O|SiO
 
4
]
9.AF.10Andalusite
Al
 
2
[O|SiO
 
4
]
9.AF.10Kanonaite
Mn
3+
 
Al[O|SiO
 
4
]
9.AF.15Kyanite
Al
 
2
[O|SiO
 
4
]
9.AF.20Mullite
Al
 
8
[(O,OH,F)|(Si,Al)O
 
4
]
 
4
9.AF.20Krieselite
(Al,Ga)
 
2
[(OH)
 
2
|GeO
 
4
]
9.AF.25Yoderite
Mg(Al,Fe
3+
 
)
 
3
[O|OH|(SiO
 
4
)
 
2
]
9.AF.30Magnesiostaurolite
(Mg,Li,Fe
2+
 
)
 
1.5-2
Al
 
9
[O
 
6
|(OH)
 
2
|(SiO
 
4
)
 
4
]
9.AF.30Staurolite
(Fe
2+
 
,Mg,Zn)
 
1.5-2
Al
 
9
[O
 
6
|(OH,O)
 
2
|(SiO
 
4
)
 
4
]
9.AF.30Zincostaurolite
(Zn,Li,Fe
2+
 
,Mg)
 
<2
Al
 
9
[O
 
6
|(OH)
 
2
|(SiO
 
4
)
 
4
]
9.AF.35Topaz
Al
 
2
[(F,OH)
 
2
|SiO
 
4
]
9.AF.40Norbergite
Mg
 
3
[(F,OH)
 
2
|SiO
 
4
]
9.AF.45Alleghanyite
Mn
2+
5
[(OH)
 
2
|(SiO
 
4
)
 
2
]
9.AF.45Chondrodite
(Mg,Fe
2+
 
)
 
5
[(F,OH)
 
2
|(SiO
 
4
)
 
2
]
9.AF.45Reinhardbraunsite
Ca
 
5
[(OH,F)
 
2
|(SiO
 
4
)
 
2
]
9.AF.50Humite
(Mg,Fe
2+
 
)
 
7
[(F,OH)
 
2
|(SiO
 
4
)
 
3
]
9.AF.50Manganhumite
(Mn
2+
 
,Mg)
 
7
[(OH)
 
2
|(SiO
 
4
)
 
3
]
9.AF.55Clinohumite
(Mg,Fe
2+
 
)
 
9
[(F,OH)
 
2
|(SiO
 
4
)
 
4
]
9.AF.55Sonolite
Mn
2+
9
[(OH,F)
 
2
|(SiO
 
4
)
 
4
]
9.AF.60Leucophoenicite
Mn
2+
7
[(OH)
 
2
|(SiO
 
4
)
 
3
]
9.AF.65Ribbeite
(Mn
2+
 
,Mg)
 
5
[(OH)
 
2
|(SiO
 
4
)
 
2
]
9.AF.70Jerrygibbsite
Mn
2+
9
[(OH)
 
2
|(SiO
 
4
)
 
4
]
9.AF.75Franciscanite
Mn
3+
6
V
5+
0.5
[(O,OH)
 
3
|SiO
 
4
]
9.AF.75Örebroite
Mn
2+
3
(Fe
3+
 
,Sb
5+
 
)[(O,OH)
 
3
|SiO
 
4
]
9.AF.75Welinite
Mn
3+
6
(W
6+
 
,Mg)
 
0.7
[(O,OH)
 
3
|SiO
 
4
]
9.AF.80Ellenbergerite
Mg
 
6
Al
 
6
Ti[(OH)
 
6
|(HSiO
 
4
)
 
4
|(SiO
 
4
)
 
4
]
9.AF.85Chloritoid
(Fe
2+
 
,Mg,Mn
2+
 
)Al
 
2
[O|(OH)
 
2
|SiO
 
4
]
9.AF.85Magnesiochloritoid
MgAl
 
2
[O|(OH)
 
2
|SiO
 
4
]
9.AF.85Ottrélite
(Mn
2+
 
,Fe
2+
 
,Mg)Al
 
2
[O|(OH)
 
2
|SiO
 
4
]
9.AF.90Poldervaartite
CaCa[SiO
 
3
OH](OH)
9.AF.90Olmiite
CaMn
2+
 
[SiO
 
3
(OH)](OH)

Other Names for Hydroxylclinohumite

Synonyms:
IMA1998-065
German names:
HydroxylclinohumitHydroxylklinohumit
Russian names:
Гидроксилклиногумит
Spanish names:
Hydroxylclinohumita

Other Information

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 Hydroxylclinohumite

Reference List:V.M. Gekimyants, E.V. Sokolova, E.M. Spiridonov, G. Ferraris, N.V. Chukanov, M. Prencipe, V.N. Avdonin, Yu.A. Polenov (1999): Hydroxylclinohumite Mg9(SiO4)4(OH,F)2 - a new mineral of the humite group. Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva 128(5): 64-70.

FERRARIS, G., PRENCIPE, M., SOKOLOVA, E.V., GEKIMYANTS, V.M., SPIRIDONOV, E.M. (2000): Hydroxylclinohumite, a new member of the humite group: Twinning, crystal structure and crystal chemistry of the clinohumite subgroup. Zeitschrift für Kristallographie, 215, 169-173.

Internet Links for Hydroxylclinohumite

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    Localities for Hydroxylclinohumite

    (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.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Vysočina Region
    		Doležalová, H., Houzar, S., Škoda, R.: Minerální asociace forsteritových mramorů s Ba-flogopitem a klinoshitalitem na uranovém ložisku Rožná, moldanubikum, západní Morava. Acta Musei Moraviae, Scientiae geologicae, 2005, roč. 90, s. 75 - 88.
    Italy
     
    • Aosta Valley
      • Nus
        • Saint-Barthélemy
    		Barresi, A.A., Kolitsch, U., Ciriotti, M.E., Ambrino, P., Bracco, R., Bonacina, E. (2005): La miniera di manganese di Varenche (Aosta, Italia nord-occidentale): ardennite, arseniopleite, manganberzeliite, pirofanite, sarkinite, thortveitite, nuovo As-Sc-analogo della metavariscite e altre specie. Micro (località), 2/2005, 81-122.Barresi, A.A., Kolitsch, U., Ciriotti, M.E., Ambrino, P., Bracco, R., Bonacina, E. (2007): Errata corrige: Varenche. Micro (località), 1/2007, 180-180.
    Russia
     
    • Urals Region
      • Chelyabinsk Oblast'
        • Zlatoust
          • Kusinsk Fe-Ti-V-deposit
    		[AmMin 85:1843]
    Mineral and/or Locality
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