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Kassite

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Formula:
CaTi2O4(OH)2
Hardness:
5
Crystal System:
Orthorhombic
Name:
In honour of Academician Nikolai Grigor’evich Kassin (1885–1949), the geologist who discovered the Afrikanda massif, Russia.
This page provides mineralogical data about Kassite.


Hide all sections | Show all sections

Classification of KassiteHide

Approved
4.DH.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
8.3.9.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
7.9.7

7 : Oxides and Hydroxides
9 : Oxides of Ti

Physical Properties of KassiteHide

Hardness:

Optical Data of KassiteHide

Type:
Biaxial (-)
RI values:
nα = 1.950 nβ = 2.130 nγ = 2.210
2V:
Measured: 58° , Calculated: 62°
Max Birefringence:
δ = 0.260
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
very strong

Chemical Properties of KassiteHide

Formula:
CaTi2O4(OH)2

Crystallography of KassiteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 12.1 Å, b = 31.65 Å, c = 4.95 Å
Ratio:
a:b:c = 0.382 : 1 : 0.156
Unit Cell V:
1,895.68 ų (Calculated from Unit Cell)

Type Occurrence of KassiteHide

Other Language Names for KassiteHide

German:Kassit
Russian:Кассит
Spanish:Kassita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Natrolite5 photos of Kassite associated with Natrolite on mindat.org.
Vesuvianite5 photos of Kassite associated with Vesuvianite on mindat.org.
Lorenzenite4 photos of Kassite associated with Lorenzenite on mindat.org.
Lizardite4 photos of Kassite associated with Lizardite on mindat.org.
Cafetite3 photos of Kassite associated with Cafetite on mindat.org.
Grossular3 photos of Kassite associated with Grossular on mindat.org.
Magnetite3 photos of Kassite associated with Magnetite on mindat.org.
Calcite2 photos of Kassite associated with Calcite on mindat.org.
Pyroaurite-2H2 photos of Kassite associated with Pyroaurite-2H on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.DH.05Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6Mon. 2/m : B2/m
4.DH.05OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
4.DH.05Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
4.DH.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
4.DH.15Bariomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bariopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6ZIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Betafite (of Hogarth 1977)A2-mB2X6-wY1-nIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutomicrolite (of Hogarth 1977)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Calciobetafite (of Mazzi & Munno)(Ca,Na)2(Nb,Ti)2(O,OH)7
4.DH.15Ceriopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15JixianitePb(W,Fe3+)2(O,OH)7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Hydropyrochlore(H2O,□)2Nb2(O,OH)6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Natrobistantite
4.DH.15Plumbopyrochlore (of Skorobogatova et al.)A2Nb2(O,OH)6Z
4.DH.15Plumbomicrolite (of Hogarth 1977)
4.DH.15Plumbobetafite (of Hogarth 1977)A2-mB2X6-wY1-n
4.DH.15Stibiomicrolite (of Groat et al.)
4.DH.15Strontiopyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Stannomicrolite (of Hogarth 1977)
4.DH.15Stibiobetafite (of Černý et al.)A2-mB2X6-wY1-nIso.
4.DH.15Uranpyrochlore (of Hogarth 1977)(U,Ca,Ce)2(Nb,Ta)2O6(OH,F)Iso.
4.DH.15Yttrobetafite (of Hogarth 1977)A2-mB2X6-wY1-n
4.DH.15Yttropyrochlore (of Hogarth 1977)A2Nb2(O,OH)6Z
4.DH.15Fluornatromicrolite(Na1.5Bi0.5)Ta2O6FIso. m3m (4/m 3 2/m) : Fd3m
4.DH.15Bismutopyrochlore (of Chukanov et al.)A2Nb2(O,OH)6ZAmor.
4.DH.15Hydrokenoelsmoreite2W2O6(H2O)Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BismutostibiconiteBi(Sb5+,Fe3+)2O7Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20BindheimitePb2Sb2O6OIso. m3m (4/m 3 2/m) : Fd3m
4.DH.20MonimoliteIso. m3m (4/m 3 2/m)
4.DH.20CuproroméiteCu2Sb2(O,OH)7Iso.
4.DH.20StetefeldtiteAg2Sb2(O,OH)7Iso.
4.DH.20Stibiconite(Sb,O,OH) ?
4.DH.25RosiaitePbSb5+2O6Trig. 3m (3 2/m) : P3 1m
4.DH.30ZirconoliteCaZrTi2O7Orth.
4.DH.35LiandratiteU(Nb,Ta)2O8Trig.
4.DH.35PetscheckiteUFe(Nb,Ta)2O8Hex.
4.DH.40IngersoniteCa3Mn2+Sb5+4O14Trig. 3 2 : P31 2 1
4.DH.45PittongiteNa0.22(W,Fe3+)(O,OH)3 · 0.44H2OHex. 6 m2 : P6m2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.9.1HongquiiteTiO
7.9.2RutileTiO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.9.3AnataseTiO2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
7.9.4BrookiteTiO2Orth. mmm (2/m 2/m 2/m)
7.9.5GeikieliteMgTiO3Trig. 3 : R3
7.9.6PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
7.9.8TausoniteSrTiO3Iso. 4 3m
7.9.9CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
7.9.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
7.9.11Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
7.9.12Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6Amor.
7.9.13PyrophaniteMn2+TiO3Trig. 3 : R3
7.9.14IwakiiteMn2+Fe3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
7.9.15IlmeniteFe2+TiO3Trig. 3 : R3
7.9.16PseudobrookiteFe2TiO5Orth. mmm (2/m 2/m 2/m)
7.9.17UlvöspinelFe2TiO4Iso.
7.9.18PseudorutileFe2Ti3O9Hex.
7.9.19FreudenbergiteNa2(Ti,Fe)8O16Mon.
7.9.20KennedyiteFe2TiO5
7.9.21Armalcolite(Mg,Fe2+)Ti2O5Orth. mmm (2/m 2/m 2/m)
7.9.22Högbomite(Mg,Fe)2(Al,Ti)5O10Hex.
7.9.23Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4
7.9.24CafetiteCaTi2O5 · H2OMon. 2/m : P21/b
7.9.25Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
7.9.26Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
7.9.27PrideriteK(Ti4+7Fe3+)O16Tet.
7.9.28Jeppeite(K,Ba)2(Ti,Fe)6O13Mon.
7.9.29AnkangiteBa(Ti,V3+,Cr)8O16Tet. 4/m : I4/m
7.9.30Ecandrewsite(Zn,Fe2+,Mn2+)TiO3Trig. 3 : R3
7.9.31LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for KassiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1967): 559-560.
American Mineralogist (1991): 76: 283-287.
Grey I E, Mumme W G, Pekov I V, Pushcharovsky D Y (2003): The crystal structure of chromian kassite from the Saranovskoye deposit, Northern Urals, Russia.
American Mineralogist 88, 1331-1335.
Bortolozzi G., Boscardin M., Rocchetti I. and Bersani D. (2013): Cafetite e kassite della cava di Pilcante in Val d'Adige (Ala, Trento). Micro, 11 (1), 39-48.

Internet Links for KassiteHide

Localities for KassiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Henan Province
    • Pingdingshan Prefecture
      • Wugang Co.
Anthony, J.W. et al.: Handbook of Mineralogy
Hungary
 
  • Borsod-Abaúj-Zemplén Co.
    • Aggteleki Mts
Zajzon, N., Váczi, T., Fehér, B., Takács, Á., Szakáll, S. and Weiszburg, T. G. (2013): Pyrophanite pseudomorphs after perovskite in Perkupa serpentinites (Hungary): a microtextural study and geological implications. Physics and Chemistry of Minerals, 40, 611-623.
Italy
 
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Lagarina Valley
        • Ala
          • Pilcante
Bortolozzi, G., Boscardin, M., Rocchetti, I., Bersani, D. (2013): Cafetite e kassite della cava di Pilcante in Val d'Adige (Ala, Trento). Micro, 11, 1, 39-48.
Russia (TL)
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Afrikanda
[World of Stones 95:5-6, 64]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
        • Khibiny Massif
Lapis 1996(4), p. 20
Pavel M. Kartashov data
  • Urals Region
    • Middle Urals
      • Permskaya Oblast'
        • Gornozavodskii area
          • Saranovskaya Village (Sarany)
Am Min, 88, 1331–1335 (2003)
USA
 
  • Arkansas
    • Hot Spring Co.
      • Magnet Cove
Rocks & Min.:63:109. Am Min 71 1045-1048
  • Montana
    • Meagher Co.
Chakhmouradian A.R., Mitchell R.H. (2002): The mineralogy of Ba- and Zr-rich alkaline pegmatites from Gordon Butte, Crazy Mountains (Montana, USA): comparisons between potassic and sodic agpaitic pegmatites. Contrib. Mineral. Petrol., 143, 93-114.
  • Oregon
    • Josephine Co.
      • Josephine Creek District
Am Min 76:283-287
Mineral and/or Locality  
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