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Schorlomite

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Formula:
Ca3(Ti,Fe3+)2((Si,Fe3+)O4)3
System:
Isometric
Colour:
Black, brown-black
Lustre:
Sub-Metallic
Hardness:
7 - 7½
Name:
For its visual resemblance to schorl
Garnet Group. Compare UM1982-16-SiO:AlCaFeTi And Morimotoite

Much of the recent material labelled "schorlomite" is mislabeled and is, strictly speaking, titanian andradite.

Visit gemdat.org for gemological information about Schorlomite.


Classification of Schorlomite

Approved, 'Grandfathered' (first described prior to 1959)
8/A.08-120
9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
51.4.3c.1

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination
14.9.35

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Type Occurrence of Schorlomite

Physical Properties of Schorlomite

Sub-Metallic
Colour:
Black, brown-black
Streak:
Dark brown
Hardness (Mohs):
7 - 7½

Crystallography of Schorlomite

Crystal System:
Isometric
Cell Parameters:
a = 12.15Å
Unit Cell Volume:
V 1,793.61 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Schorlomite

Type:
Isotropic

Chemical Properties of Schorlomite

Formula:
Ca3(Ti,Fe3+)2((Si,Fe3+)O4)3
All elements listed in formula:
Common Impurities:
Na,Al,Mn,Mg,Na,K,H20,P,Zr,V

Relationship of Schorlomite to other Species

Series:
Forms a series with Andradite (see here)
Other Members of Group:
AlmandineFe32+Al2(SiO4)3
AndraditeCa3Fe23+(SiO4)3
Berzeliite(NaCa2)Mg2(AsO4)3
BitikleiteCa3SbSn(AlO4)3
BlythiteMn32+Mn23+[SiO4]3
Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
DzhuluiteCa3SbSnFe33+O12
ElbrusiteCa3U6+ZrFe23+Fe2+O12
GoldmaniteCa3V23+(SiO4)3
GrossularCa3Al2(SiO4)3
HenritermieriteCa3(Mn3+,Al)2(SiO4)2(OH)4
HutcheoniteCa3Ti2(SiAl2)O12
IrinarassiteCa3Sn2Al2SiO12
KatoiteCa3Al2(SiO4)3-x(OH)4x
KerimasiteCa3Zr2(SiO4)(Fe3+O4)2
KhohariteMg3Fe23+(SiO4)3
KimzeyiteCa3(Zr,Ti)2((Si,Al,Fe3+)O4)3
KnorringiteMg3Cr2(SiO4)3
MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
Menzerite-(Y){(Y,REE),(Ca,Fe2+)}3{(Mg,Fe2+),(Fe3+,Al)}2[SiO4]3
Momoiite(Mn2+,Ca)3V23+(SiO4)3
MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
Palenzonaite(Ca,Na)3CaMn22+(VO4)3
PyropeMg3Al2(SiO4)3
SchäferiteCa2NaMg2(VO4)3
SkiagiteFe32+Fe23+[SiO4]3
SpessartineMn32+Al2(SiO4)3
ToturiteCa3Sn2(SiO4)(Fe3+O4)2
UM1984-37-SiO:CrMnMn32+(Cr3+,Mn3+)2Si3O12
UsturiteCa3SbZr(Fe3+O4)3
UvaroviteCa3Cr2(SiO4)3
YafsoaniteCa3Zn3(TeO6)2
9.AD.05LarniteCa2SiO4
9.AD.10Calcio-olivineCa2SiO4
9.AD.15MerwiniteCa3Mg(SiO4)2
9.AD.20BredigiteCa7Mg(SiO4)4
9.AD.25AndraditeCa3Fe23+(SiO4)3
9.AD.25AlmandineFe32+Al2(SiO4)3
9.AD.25Calderite(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
9.AD.25GoldmaniteCa3V23+(SiO4)3
9.AD.25GrossularCa3Al2(SiO4)3
9.AD.25HenritermieriteCa3(Mn3+,Al)2(SiO4)2(OH)4
9.AD.25HibschiteCa3Al2(SiO4)3-x(OH)4x
9.AD.25HydroandraditeCa3Fe23+(SiO4)3-x(OH)4x
9.AD.25KatoiteCa3Al2(SiO4)3-x(OH)4x
9.AD.25KimzeyiteCa3(Zr,Ti)2((Si,Al,Fe3+)O4)3
9.AD.25KnorringiteMg3Cr2(SiO4)3
9.AD.25MajoriteMg3(Fe2+,Si,Al)2(SiO4)3
9.AD.25MorimotoiteCa3(Ti,Fe2+,Fe3+)2((Si,Fe3+)O4)3
9.AD.25PyropeMg3Al2(SiO4)3
9.AD.25SpessartineMn32+Al2(SiO4)3
9.AD.25UvaroviteCa3Cr2(SiO4)3
9.AD.25Wadalite(Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3
9.AD.25HoltstamiteCa3(Al,Mn3+)2(SiO4)2(OH)4
9.AD.25KerimasiteCa3Zr2(SiO4)(Fe3+O4)2
9.AD.25ToturiteCa3Sn2(SiO4)(Fe3+O4)2
9.AD.25Momoiite(Mn2+,Ca)3V23+(SiO4)3
9.AD.25EltyubyuiteCa12Fe103+Si4O32Cl6
9.AD.25HutcheoniteCa3Ti2(SiAl2)O12
9.AD.30Coffinite(U4+,Th)(SiO4)1-x(OH)4x
9.AD.30HafnonHf(SiO4)
9.AD.30ThoriteTh(SiO4)
9.AD.30ZirconZr(SiO4)
9.AD.30Stetindite-(Ce)Ce(SiO4)
9.AD.35HuttoniteThSiO4
9.AD.35Tombarthite-(Y)Y4(Si,H4)4O12-x(OH)4+2x
9.AD.40EulytineBi4(SiO4)3
9.AD.45ReiditeZrSiO4
14.9.1NatisiteNa2Ti(SiO4)O
14.9.2LorenzeniteNa2Ti2(Si2O6)O3
14.9.3LintisiteLiNa3Ti2(Si2O6)2O2 · 2H2O
14.9.4DavaniteK2TiSi6O15
14.9.5KazakoviteNa6Mn2+Ti(Si6O18)
14.9.6TitaniteCaTi(SiO4)O
14.9.7OhmiliteSr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O
14.9.8Lamprophyllite(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
14.9.9BenitoiteBaTi(Si3O9)
14.9.10BatisiteBaNaNaTi2(Si4O12)O2
14.9.11FresnoiteBa2Ti(Si2O7)O
14.9.12Joaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2O
14.9.13Orthojoaquinite-(Ce)NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2O
14.9.14StrontiojoaquiniteSr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2O
14.9.15Bario-orthojoaquinite(Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2O
14.9.16Strontio-orthojoaquinite(Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2O
14.9.17BafertisiteBa2Fe42+Ti2(Si2O72O2(OH)2F2
14.9.18HejtmaniteBa2(Mn2+,Fe2+)4Ti2(Si2O7)2O2(OH)2F2
14.9.19Delindeite(Na,K)2(Ba,Ca)2(Ti,Fe,Al)3(Si2O7)2O2(OH)2 · 2H2O
14.9.20Barytolamprophyllite(Ba,Na)2(Na,Ti,Fe3+)4Ti2(Si2O7)2O(OH,F)
14.9.21Trimounsite-(Y)Y2Ti2(SiO4)O5
14.9.22Perrierite-(Ce)Ce4MgFe23+Ti2(Si2O7)2O8
14.9.23Chevkinite(Ce,Ca,Th)4(Fe,Mn)2(Ti,Fe)3[Si2O7]2O8
14.9.24Strontiochevkinite(Sr,La,Ce,Ca)4Fe2+(Ti,Zr)2Ti2(Si2O7)2O8
14.9.25TisinaliteNa3H3(Mn,Ca,Fe)TiSi6(O,OH)18 · 2H2O
14.9.26NeptuniteNa2KLiFe22+Ti2Si8O24
14.9.27ManganoneptuniteNa2KLiMn22+Ti2Si8O24
14.9.28Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
14.9.29AstrophylliteK2NaFe72+Ti2Si8O28(OH)4F
14.9.30Hydroastrophyllite(H3O,K,Ca)3(Fe,Mn)5-65Ti2Si8(O,OH)31
14.9.31LobanoviteK2Na(Fe42+Mg2Na)Ti2(Si4O12)2O2(OH)4
14.9.32BaratoviteKCa7(Ti,Zr)2Li3Si12O36F2
14.9.34AenigmatiteNa2Fe52+Ti(Si6O18)O2
14.9.36TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
14.9.37Janhaugite(Na,Ca)3(Mn2+,Fe2+)3(Ti,Zr,Nb)2(Si2O7)2O2(OH,F)2
14.9.38KoashviteNa6(Ca,Mn)(Ti,Fe)Si6O18 · H2O

Other Names for Schorlomite

Name in Other Languages:

Other Information

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 Schorlomite

Reference List:
Howie, R.A., A.R. Wooley, J.H. Scoon, R.C. Tyler & J.N. Walsh (1968), The role of titanium and the effect of TiO2 on the cell size, refractive index, and specific gravity in the andradite-melanite-schorlomite series: Mineralogical Magazine: 36: 775-790.

Manning, P.G. & D.C. Harris (1970), Optical absorption and electron-microprobe studies of some high-Ti andradites: Canadian Mineralogist: 10: 260-271.

Huggins, F.E., D. Virgo & H.G. Huckenbolz (1977), Titanium-containing silicate garnets: II. The crystal chemistry of melanites and schorlomites: American Mineralogist: 62: 646-665.

Schwartz, K.B., Nolet, D.A., and Burns, R.G. (1980) Mössbauer spectroscopy and crystal chemistry of natural Fe-Ti garnets. American Mineralogist: 65: 142-153.

American Mineralogist (1989): 74: 422.

Canadian Mineralogist 33 (1995): 627-631.

Armbruster, Th., Birrer, J., Libowitzky, E., Beran, A. (1998): Crystal chemistry of Ti-bearing andradites, European Journal of Mineralogy, Vol. 10, 907-921

Chakhmouradian, A. R.; McCammon, C. A. (2005): Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries. Physics and Chemistry of Minerals 32, 277-289.

Internet Links for Schorlomite

mindat.org URL:
http://www.mindat.org/min-3579.html
Please feel free to link to this page.
Specimens:
The following Schorlomite specimens are currently listed for sale on minfind.com.

Localities for Schorlomite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Brazil
 
  • São Paulo
    • Cajati
MinRec 15:261-270
Cameroon
 
  • South-West Region
    • Buea
      • Cameroon Mt
Bindi, L., Bonazzi, P., Fitton, G.J. (2001): Crystal chemistry of strontian soda melilite from nephelinite lava of Mt. Etinde, Cameroon, European Journal of Mineralogy; February 2001; Vol. 13; p. 121-125
Canada
 
  • British Columbia
    • Golden Mining Division
CAVELL, R. G., & DUKE, M. J. M. (1995). Spectroscopy of the cation distribution in the schorlomite species of garnet. American Mineralogist, 80, 27-38.
Jones, W. C. (1955) Geology of the Garnet Mountain-Aguilla Ridge Area, Ice River, British Columbia. MSc thesis, University of British Columbia.
  • Newfoundland and Labrador
    • Labrador
Tappe, S., (2005) Genesis of Ultramafic Lamprophyres and Carbonatites, Aillik Bay, Canada: Implications for Incipient Rifting in the Labrador Sea Area. Nature and Origin of Ultramafic Lamprophyres and Carbonatites from the Borders of the Labrador Sea: Insights from Petrology, Geochemistry, and Geochronology. PhD thesis Johannes Gutenberg-Universität Mainz
  • Ontario
    • Algoma District
      • McMurray Township
Sage (1988) Ont. Geol. Survey Study 47.
    • Thunder Bay District
      • Killala Lake Area
The Canadian Mineralogist Vol. 44, pp. 929-942 (2006)
  • Québec
    • Nord-du-Québec
      • Nunavik
        • Ungava
          • Abloviak fjord
Tappe, S., Jenner, G. A., Foley, S. F., Heaman, L., Besserer, D., Kjarsgaard, B. A., & Ryan, B. (2004). Torngat ultramafic lamprophyres and their relation to the North Atlantic Alkaline Province. Lithos, 76(1), 491-518.
    • Saguenay-Lac-Saint-Jean
      • Le Fjord-du-Saguenay RCM
        • Saint-Honoré
Currie (1976) GSC Bulletin 239, 109-110
FOURNIER, A. (1993) Magmat!c and hydrothermal controls of LREE mineralization of the St.-Honoré carbonatite, Québec. M.Sc. thesis, McGill University, Montreal, Canada. 95p.
Cape Verde
Kogarko, L. N., Sorokhtina, N. V., Zaitsev, V. A., & Senin, V. G. (2009). Rare metal mineralization of calcite carbonatites from the Cape Verde Archipelago. Geochemistry International, 47(6), 531-549.
China
 
  • Hebei Province
    • Baoding Prefecture
      • Laiyuan Co.
Chang Zhaoshan and Feng Zhongyan (1996): Acta Scientiarum Naturalium Universitatis Pekinensis 32(6), 724-733.
    • Zhangjiakou Prefecture
      • Zhuolu Co.
Baolei Mu, Junjun Cai, and Zhenhui Bian (1998): Acta Petrologica et Mineralogica 17(4), 359-370.
  • Shanxi Province
    • Lüliang Prefecture
      • Lin Co.
Daogan Tai and Peiying Lin (1987): Geoscience 1(1), 86-94
Finland
 
  • Northern Finland Region
    • Kuusamo
Chakhmouradian, A. R., & McCammon, C. A. (2005). Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries. Physics and Chemistry of Minerals, 32(4), 277-289.
Germany
 
  • Baden-Württemberg
Armbruster, Th., Birrer, J., Libowitzky, E., Beran, A. (1998): Crystal chemistry of Ti-bearing andradites, European Journal of Mineralogy, Vol. 10, 907-921
  • Lower Saxony
    • Harz
      • Bad Harzburg
        • Radau valley
No reference listed
  • Rhineland-Palatinate
    • Eifel
      • Gerolstein
        • Rockeskyll
          • Rockeskyll volcanic complex
Riley, T., Bailey, K., lloyd, F.,, Extrusive carbonatite from the quaternary Rockeskyll complex, West Eifel, Germany, Canadian Mineralogist, Vol 34, 389-401, 1996
      • Hillesheim
Hentschel, G., Die Lavaströme der Graulai: eine neue Fundstelle in der Westeifel, Lapis, Weise Verlag München, 09/1993
      • Mayen
        • Ettringen
          • Bellerberg volcano
Blass, G., Graf, H.W., Kolitsch, U., Neue Funde und Mineralien aus der Vulkaneifel, Mineralien-Welt 13/1, 52-57, 2002
      • Rieden volcano
        • Ettringen
Viereck, L., Geologische und petrologische Entwicklung des pleistozänen Vulkankomplexes Rieden, Ost-Eifel, Bochumer geol. Geotechn. Arbeiten 17, 1984
        • Niederzissen
          • Wehr
Viereck, L., Geologische und petrologische Entwicklung des pleistozänen Vulkankomplexes Rieden, Ost-Eifel, Bochumer geol. Geotechn. Arbeiten 17, 1984
Greenland
 
  • Sermersooq
    • Paamiut (Frederikshåb)
http://www.koeln.netsurf.de/~w.steffens/green.htm
  • Tunu Province (East Greenland)
    • Kangerlussuaq Firth
      • Kangerlussuaq complex
MinRec 16:485-494
Iraq
 
  • Iraqi Kurdistan
    • Sulaymaniyah province
      • Qala-Diz (Qala-Dizeh; Qala-Diza)
        • Hero
Al-Hermezi, H. M., McKie, D., & Hall, A. J. (1986). Baghdadite, a new calcium zirconium silicate mineral from Iraq. Mineralogical Magazine, 50, 119-123.
Israel
 
  • Negev
Vapnik, Y., Sokol, E., Murashko M., Sharygin V. (2006): The enigma of Hatrurim. Mineralogical Almanac, 10, 69-77.
Italy
 
  • Latium
    • Rieti Province
      • Rieti
        • Santa Rufina
Stoppa, F., and Woolley, A.R. (1997): Mineralogy and Petrology 59, 43-67.
  • Umbria
    • Perugia Province
      • Spoleto
Stoppa.F., Wolley A.R. and Bailey K. (2004). Extrusive carbonatites and their meaning: the case of Italy. 32nd International Geological Congress, Florence - Italy, August 20-28, 2004, pag. 7-8. L. Terrazzi Ed., Firenze, 2004
    • Terni Province
F. Stoppa and Y. Liu, Eur. J. Mineral. , 1995, 7, pp. 391-402.; Stoppa, F., & Lupini, L. (1993). Mineralogy and petrology of the Polino monticellite calciocarbonatite (Central Italy). Mineralogy and Petrology, 49(3-4), 213-231.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
(= titanium-rich andradite)
Mongolia
 
  • Ömnögovi Aimag
    • Shara Hulasa Hiid
Pavel M. Kartashov data
Morocco
 
  • Meknès-Tafilalet Region
    • Er Rachidia Province (Errachidia Province)
various added photos
    • Khénifra Province
      • Tamazeght Mountain Range
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
C Bracke collection
Norway
 
  • Telemark
    • Skien
Larsen, A.O. (1993): Gruver og skjerp i Skien. Stathelle 1993. 72p
Jamtveit B., Dahlgren S. and Austrheim H. (1997): High-grade contact metamorphism of calcareous rocks from the Oslo Rift, Southern Norway. American Mineralogist. 82 : 1241 - 1254
Russia
 
  • Eastern-Siberian Region
    • Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai)
      • Maimecha and Kotui Rivers Basin
Pavel M. Kartashov data
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
P.M. Kartashov data
    • Sakha Republic (Saha Republic; Yakutia)
[World of Stones 12:49]
Gałuskina, I.O., Gałuskin, E.V., Lazic, B., Armbruster, T., Dzierżanowski, P., Prusik, K., Wrzalik, R. (2010): Eringaite, Ca3Sc2(SiO4)3, a new mineral of the garnet group. Mineralogical Magazine, 74, 365-373.
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Afrikanda
Chakhmouradian, A. R.; McCammon, C. A. (2005): Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries. Physics and Chemistry of Minerals 32, 277-289.
www.koeln.netsurf.de/~w.steffens/khib.htm
          • Kukisvumchorr Mt
Shlyukova Z.V. (1986) Mineralogy of contact formations of Khibina massif, - Moscow, Nauka, p. 96 (in Rus.)
Verhulst, A., Balaganskaya, E., Kirnarsky, Y., & Demaiffe, D. (2000). Petrological and geochemical (trace elements and Sr–Nd isotopes) characteristics of the Paleozoic Kovdor ultramafic, alkaline and carbonatite intrusion (Kola Peninsula, NW Russia). Lithos, 51(1), 1-25.
        • Turii Cape
www.koeln.netsurf.de/~w.steffens/tury.htm; Keith Bell, Elizabeth Ann Dunworth, Andrei G. Bulakh, and Valeriy V. Ivanikov (1996) Alkaline rocks of the Turiy Peninsula, Russia, including type-locality turjaite and turjite; a review. Can Mineral, v. 34, p. 265-280
      • Northern Karelia
www.koeln.netsurf.de/~w.steffens/vuori.htm
South Africa
 
  • North West Province
    • Ngaka Modiri Molema District
VERWOERD, W.J. (1993) Update on carbonatites of South Africa and Namibia. South African Journal of Geology, 96(3), 75-95.
Sudan
 
  • An Nil al Azraq Wilayah
Ahmed Khidir Yagoub () Mineral Processing in Blue Nile. Scribd
Sweden
 
  • Medelpad
    • Sundsvall
Kresten, P. (1990): The Alnø area (in Swedish). In: Lundqvist, T. (Ed.), Beskrivning Till Bergrundskartan Over Västernorrlands län. Sveriges Geologiska Undersökning, serie Ba, 31, 238–278
UK
 
  • Scotland
    • North West Highlands
      • Ardnamurchan
Peter G. Embrey (1978) Fourth Supplementary List of British Minerals. Mineralogical Magazine 42:169-177
USA (TL)
 
  • Arkansas
    • Hot Spring Co.
Shepard CU: Amer.J.Sci. 2nd ser.(1846) 2, 249-254; Chakhmouradian, A. R.; McCammon, C. A. (2005): Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries. Physics and Chemistry of Minerals 32, 277-289.; Rocks and Minerals, (1976) 51:495-507
Rocks and Minerals, (1988) 63:104-125
American Mineralogist, Volume 7 4, pages 113-131, 1989
Rocks and Minerals, (1976) 51:495-507
Rocks and Minerals, (1988) 63:104-125
  • California
    • Humboldt Co.
      • Coastal Range
Czamanske, G.K., B.F. Leonard & J.R. Clark (1980), Erdite, a new hydrated sodium iron sulfide mineral: American Mineralogist: 65: 508; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 495; American Mineralogist: (1983) 68: 245-254.
  • Colorado
    • Gunnison Co.
      • White Earth District (Powderhorn District)
"Minerals of Colorado, updated & revised", p. 17, by Eckel, Edwin B., 1997
Mineral and/or Locality  
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