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Afwillite

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About AfwilliteHide

04131060014946247816719.jpg
Alpheus Fuller Williams
Formula:
Ca3(HSiO4)2 · 2H2O
Colour:
Colourless, white
Lustre:
Vitreous
Hardness:
3 - 4
Specific Gravity:
2.630
Crystal System:
Monoclinic
Name:
Named in 1925 by John Parry and Frederick Eugene Wright in honor of Alpheus Fuller Williams [June 21, 1874 Oakland Alameda County California, USA - January 6, 1953 Cape Town, Western Cape, South Africa] of the De Beers Consolidated Mines of South Africa.
This page provides mineralogical data about Afwillite.


Classification of AfwilliteHide

Approved, 'Grandfathered' (first described prior to 1959)
First published:
1925
9.AG.75

9 : SILICATES (Germanates)
A : Nesosilicates
G : Nesosilicates with additional anions; cations in > [6] +- [6] coordination
52.4.7.1

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
4 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
14.5.11

14 : Silicates not Containing Aluminum
5 : Silicates of Ca

Physical Properties of AfwilliteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless, white
Streak:
White
Hardness:
3 - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {101}, good on {100}
Fracture:
Conchoidal
Density:
2.630 g/cm3 (Measured)    2.643(5) g/cm3 (Calculated)

Optical Data of AfwilliteHide

Type:
Biaxial (+)
RI values:
nα = 1.617 nβ = 1.620 nγ = 1.634
2V:
Measured: 50° to 56°
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v

Chemical Properties of AfwilliteHide

Formula:
Ca3(HSiO4)2 · 2H2O
IMA Formula:
Ca3[SiO4][SiO2(OH)2] · 2H2O
Common Impurities:
Al,Fe,Mg,F

Crystallography of AfwilliteHide

Crystal System:
Monoclinic
Class (H-M):
m - Domatic
Space Group:
Bb
Cell Parameters:
a = 16.278(1) Å, b = 5.6321(4) Å, c = 13.236(1) Å
β = 134.9°
Ratio:
a:b:c = 2.89 : 1 : 2.35
Unit Cell V:
859.55 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals are prismatic, tabular, radial fibrous spherulites, massive

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0009147AfwilliteMegaw H D (1952) The structure of afwillite, Ca3(SiO3OH)2*2H2O Acta Crystallographica 5 477-4911952Scawt Hill, Northern Ireland0293
0009551AfwilliteMalik K M A, Jeffery J W (1976) A re-investigation of the structure of afwillite Acta Crystallographica B32 475-48019760293
0012415AfwilliteRastsvetaeva R K, Chukanov N V, Zadov A E (2009) Refined structure of afwillite from the northern Baikal region Crystallography Reports 54 418-4222009Yoko Dovyrensky massif, northern Baikal region, Russia0293
CIF Raw Data - click here to close

Geological EnvironmentHide

Geological Setting:
Contact metamorphism of limestones.

Type Occurrence of AfwilliteHide

Reference:
Parry, J., Wright, F.E. (1925) Afwillite, a new hydrous calcium silicate, from Dutoitspan mine, Kimberley, South Africa. Mineralogical Magazine: 20: 277-285.

Other Language Names for AfwilliteHide

Dutch:Afwilliet
German:Afwillit
Italian:Afwillite
Latvian:Afvilīts
Spanish:Afwillita

Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Afwillite associated with EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
6 photos of Afwillite associated with AndraditeCa3Fe3+2(SiO4)3
3 photos of Afwillite associated with PortlanditeCa(OH)2
2 photos of Afwillite associated with HydrocalumiteCa4Al2(OH)12(Cl,CO3,OH)2 · 4H2O
1 photo of Afwillite associated with ThaumasiteCa3(SO4)[Si(OH)6](CO3) · 12H2O
1 photo of Afwillite associated with Brownmillerite-Srebrodolskite Series

Related Minerals - Nickel-Strunz GroupingHide

9.AG.EdgrewiteCa9(SiO4)4F2Mon. 2/m : P21/b
9.AG.05AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05BrauniteMn2+Mn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.05Braunite-IICaMn3+14(SiO4)O20Tet. 4/mmm (4/m 2/m 2/m) : I41/acd
9.AG.10LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
9.AG.15MalayaiteCaSn(SiO4)OMon.
9.AG.15TitaniteCaTi(SiO4)OMon. 2/m : P21/b
9.AG.15VanadomalayaiteCaV4+(SiO4)OMon.
9.AG.15Natrotitanite(Na0.5Y0.5)Ti(SiO4)OMon. 2/m : B2/b
9.AG.15ŻabińskiiteCa[Al0.5(Ta,Nb)0.5)](SiO4)OTric. 1
9.AG.20Cerite-(Ce)(Ce,Ca)9(Mg,Fe)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.20Ferricerite-(La)(La,Ce,Ca)9Fe3+(SiO4)3(SiO3OH)4(OH)3Trig. 3m : R3c
9.AG.20Aluminocerite-(Ce)(Ce,La,Ca)9(Al,Fe3+)(SiO4)3(HSiO4)4(OH)3Trig. 3m : R3c
9.AG.25Trimounsite-(Y)Y2Ti2(SiO4)O5Mon.
9.AG.25Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
9.AG.25Mieite-(Y)Y4Ti(SiO4)2O[F,(OH)]6Orth. mmm (2/m 2/m 2/m) : Cmcm
9.AG.30SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2OTet.
9.AG.35KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.
9.AG.40aNatisiteNa2Ti(SiO4)OTet.
9.AG.40bParanatisiteNa2Ti(SiO4)OOrth.
9.AG.45Törnebohmite-(Ce)(Ce,La)2Al(SiO4)2(OH)Mon. 2/m : P21/b
9.AG.45Törnebohmite-(La)(La,Ce)2Al(SiO4)2(OH)
9.AG.50Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5Tric. 1 : P1
9.AG.55ChantaliteCaAl2(SiO4)(OH)4Tet. 4/m : I41/a
9.AG.60MozartiteCaMn3+(SiO4)(OH)Orth. 2 2 2 : P21 21 21
9.AG.60VuagnatiteCaAl(SiO4)(OH)Orth.
9.AG.65HatruriteCa3(SiO4)OTrig.
9.AG.70JasmunditeCa11(SiO4)4O2STet. 4 2m : I4m2
9.AG.80BultfonteiniteCa2(HSiO4)F · H2OTric.
9.AG.85ZoltaiiteBaV4+2V3+12(SiO4)2O19Trig. 3 : P3
9.AG.90Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12Hex.

Related Minerals - Dana Grouping (8th Ed.)Hide

52.4.7.2BultfonteiniteCa2(HSiO4)F · H2OTric.
52.4.7.3HatruriteCa3(SiO4)OTrig.
52.4.7.4JasmunditeCa11(SiO4)4O2STet. 4 2m : I4m2

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.5.1WollastoniteCaSiO3Tric. 1 : P1
14.5.2Wollastonite-7TCaSiO3
14.5.3Wollastonite-2MCaSiO3Mon. 2/m : P21/b
14.5.4RankiniteCa3Si2O7Mon. 2/m : P21/b
14.5.5KilchoaniteCa6(SiO4)(Si3O10)Orth.
14.5.6LarniteCa2SiO4Mon. 2/m
14.5.7BredigiteCa7Mg(SiO4)4Orth.
14.5.8HatruriteCa3(SiO4)OTrig.
14.5.9RosenhahniteHCa3[Si3O9(OH)]Tric.
14.5.10DellaiteCa6Si3O11(OH)2Tric.
14.5.12XonotliteCa6(Si6O17)(OH)2Mon. 2/m
14.5.13FoshagiteCa4(Si3O9)(OH)2Tric.
14.5.14HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
14.5.15JaffeiteCa6(Si2O7)(OH)6Trig. 3 : P3
14.5.16SuoluniteCa2(H2Si2O7) · H2OOrth.
14.5.17KillalaiteCa6.4(H0.6Si2O7)2(OH)2Mon.
14.5.18OkeniteCa10Si18O46 · 18H2OTric. 1 : P1
14.5.19RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
14.5.20TrabzoniteCa4(Si3O9)(OH)2Orth. mm2 : Ama2
14.5.21GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
14.5.22FoshallasiteCa3[Si2O7] · 3H2O(?)
14.5.23TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)Orth.
14.5.24Clinotobermorite[Ca4Si6O17 · 2H2O] · (Ca · 3H2O)Mon.
14.5.25NekoiteCa3Si6O15 · 7H2OTric. 1 : P1
14.5.26Plombièrite[Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)Orth.
14.5.27JenniteCa9(Si3O9)2(OH)8 · 8H2OTric.

Other InformationHide

Electrical:
Piezoelectric
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 AfwilliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Parry, J., Wright, F.E. (1925) Afwillite, a new hydrous calcium silicate, from Dutoitspan mine, Kimberley, South Africa. Mineralogical Magazine: 20: 277-285.
Foshag, W.F. (1925) New minerals: new species. American Mineralogist: 10: 447-448.
Tilley, C.E. (1930) An association of afwillite with spurrite. Geological Magazine: 67(4): 168-169.
Megaw, H.D. (1949) Hydroxyl groups in afwillite. Acta Crystallographica: 2(6): 419-420.
Megaw, H.D. (1952) The structure of afwillite, Ca3(SiO3OH)2·2H2O. Acta Crystallographica: 5: 477-491.
Moody, K.M. (1952) The thermal decomposition of afwillite. Mineralogical Magazine and Journal of the Mineralogical Society: 29(216): 838-840.
Switzer, G., Bailey, E.H. (1953) Afwillite from Crestmore, California. American Mineralogist: 38(7-8): 629-633.
Shaw, R. (1953) The thermal expansion of afwillite. Acta Crystallographica: 6(5): 428-429.
Taylor, H.F.W. (1955) The dehydration of afwillite. Acta Crystallographica: 8(7): 440-440.
Grünhagen, H., Mergoil-Daniel, J. (1963) Découverte d'hydrocalumite et afwillite associées à l'ettringite dans les porcélanites de Boisséjour près Ceyrat (Puy-de-Dôme). Bulletin de Minéralogie: 86(2): 149-157.
Taylor, J.E. (1968) The heat of formation of xonotlite, tobermorite, hillebrandite and afwillite. In Conference on the Silicate Industry. Akad Kiado, Budapest, Hungary: 179-184.
Malik, K.M.A., Jeffery, J.W. (1976) A reinvestigation of the structure of afwillite. Acta Crystallographica: B32: 475-480.
Kusachi, I., Henmi, C., Henmi, K. (1989) Afwillite and jennite from Fuka, Okayama Prefecture, Japan. Mineralogical Journal: 14(7): 279-292.
Rastsvetaeva, R.K., Chukanov, N.V., Zadov, A.E. (2009) Refined structure of afwillite from the northern Baikal region. Crystallography Reports: 54: 418-422.

Internet Links for AfwilliteHide

Localities for AfwilliteHide

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.
Austria
 
  • Styria
    • Südoststeiermark District
      • Klöch
Walter Trattner collection
France
 
  • Auvergne-Rhône-Alpes
    • Puy-de-Dôme
      • Clermont-Ferrand
        • Beaumont
Grünhagen H and Mergoil J (1963) Découverte d'hydrocalumite et afwillite associées à l'ettringite dans les porcélanites de Boisséjour près Ceyrat (Puy de Dôme). Bulletin de la Société Française de Minéralogie et de Cristallographie 86: 149-157.
Germany
 
  • Bavaria
    • Lower Franconia
      • Haßberge District
        • Maroldsweisach
Pöllmann, H. (1991): Die Afwillit-Portlandit Paragenese im Basalt des Zeilbergs bei Maroldsweisach/Unterfranken. Aufschluss, 42, 257-266
  • Rhineland-Palatinate
    • Ahrweiler District
      • Brohltal
        • Brenk
Handbook of Mineralogy
    • Mayen-Koblenz District
      • Mendig
        • Bell
Blass, G., Graf, HW., Kolitsch, U., Sebold, D., Über neue Mineralfunde aus der Vulkaneifel, MW 6/2005
      • Vordereifel
        • Ettringen
Hentschel, G. (1987): Die Mineralien der Eifelvulkane, Weise (München), 2. Auflage
        • Kottenheim
Hentschel, G., Die Mineralien der Eifelvulkane, Weise (München), 1983
    • Vulkaneifel District
      • Daun
        • Üdersdorf
Schüller, W., Betz, V., Die Mineralien vom Emmelberg, Lapis 12/1986
      • Gerolstein
        • Hohenfels-Essingen
Blass, G., Emmerich, F., Graf, HW., Schäfer, Ch., Tschörtner, J., (2006): Minerale der Eifelvulkane, Version 1.0, CD, published by authors
Ireland
 
  • Connacht
    • Sligo County
      • Killala Bay
Nawaz, R. (1974) Killalaite, a New Mineral from Co. Sligo, Ireland. Mineralogical Magazine, vol. 39, n° 305, 544-548.; Embrey, P.G. (1978) Fourth supplementary list of British minerals. Mineralogical Magazine, vol. 42, n° 322, 169-177 (referring to Nawaz)
Israel
 
  • Southern District (HaDarom District)
    • Tamar Regional Council
Galuskin, E.V., Gfeller, F., Armbruster, T., Sharygin, V.V., Galuskina, I.O., Krivovichev, S.V., Vapnik, Y., Murashko, M., Dzierżanowski, P., Wirth, R. (2015): Mayenite supergroup, part III: Fluormayenite, Ca12Al14O32[□4F2], and fluorkyuygenite, Ca12Al14O32[(H2O)4F2], two new minerals from pyrometamorphic rocks of the Hatrurim Complex, South Levant. European Journal of Mineralogy, 27, 123-136
Britvin, S.N., Galuskina, I.O., Vlasenko, N.S., Vereshchagin, O.S., Bocharov, V.N., Krzhizhanovskaya, M.G., Shilovskikh, V.V., Galuskin, E.V., Vapnik, Y., Obolonskaya, E.V. (2021) Keplerite, Ca9(Ca0.5□0.5)Mg(PO4)7, a new meteoritic and terrestrial phosphate isomorphous with merrillite, Ca9NaMg(PO4)7. American Mineralogist: ??: ??.
Sharygin, Victor V.; Yakovlev, Grigory A.; Wirth, Richard; Seryotkin, Yurii V.; Sokol, Ellina V.; Nigmatulina, Elena N.; Karmanov, Nikolai S.; Pautov, Leonid A. (2019) Nataliakulikite, Ca4Ti2(Fe3+,Fe2+)(Si,Fe3+,Al)O11, a New Perovskite-Supergroup Mineral from Hatrurim Basin, Negev Desert, Israel. Minerals 9, no. 11: 700.
  • Tel Aviv District
GROSS, S., MAZOR, E., SASS, E., & ZAK., I. (1967). The mottled zone complex of Ayalon (Israel). Israel Bull. Earth Sciences, 16, 84-96.
Italy
 
  • Lazio
    • Metropolitan City of Rome Capital
Caponera, I., Fiori, S., Pucci, R., & Signoretti, E. (2007). I minerali dei Colli Albani. Un aggiornamento sugli ultimi dieci anni di ricerche. Rivista Mineralogica Italiana, 31 (2), 74-91.
      • Rome
        • Valleranello
Fiori, S., Pucci, R., and Papacci, M. (2002) Nuovi ritrovamenti nelle cave di Vallerano (Roma). Il Cercapietre, 1-2, articolo 6; http://www.gminromano.it/Cercapietre/rivista02/testo/02A06.html; Carlini, R., and Signoretti, E. (2018) Il Lazio classico: le cave di leucitite della provincia di Roma (Vallerano, Laghetto e Osa). Fossils & Minerals, 4, 24-53.
    • Viterbo Province
      • Montalto di Castro
        • Pietra Massa Locality
Passaglia, E. & Turconi, B. (1982): Silicati ed altri minerali di Montalto di Castro - VT. Rivista Mineralogica Italiana, 4/1982, 97-110.
  • Umbria
    • Perugia Province
      • Spoleto
Stoppa F., Scordari F., Mesto E., Sharygin V.V. and Bortolozzi G. - Calcium-aluminium-silicate-hydrate "cement" phases and rare Ca-zeolite association at Colle Fabbri, Central Italy (2010). Centr.Eur.J.Geosci. 2 (2), pag. 175-187 .
  • Veneto
    • Vicenza Province
      • Cornedo Vicentino
        • Spagnago
Lapis, 15 (12), 27-32+50.; Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
Japan
 
  • Hiroshima Prefecture
    • Shoubara City
      • Kushiro
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Okayama Prefecture
    • Ibara City
      • Higashi-Mihara
KUSACHI, I., HENM, C., & HENMI, K. (1989). Afwillite and jennite from Fuka, Okayama Prefecture, Japan. Mineralogical Journal, 14, 279-292.
    • Takahashi City
      • Bicchu-cho (Bitchu-cho)
        • Fuka
KUSACHI, I., HENM, C., & HENMI, K. (1989). Afwillite and jennite from Fuka, Okayama Prefecture, Japan. Mineralogical Journal, 14, 279-292. ; Mineralogical Journal Vol. 14 (1989) , No. 7 pp 279-292; Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18· 5H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358.
Jordan
 
  • Amman Governorate
Pitty, A. F., & Alexander, W. R. (2010). A natural analogue study of cement buffered, hyperalkaline groundwaters and their interaction with a repository host rock IV: an examination of the Khushaym Matruk (central Jordan) and Maqarin (northern Jordan) sites. NDA-RWMD Technical Report, NDA, Moors Row, UK.
    • Hashem region
      • Lisdan-Siwaga Fault
        • Siwaga
Vapnik, Y., Galuskin, E. V., Galuskina, I. O., Kusz, J., Stasiak, M., Krzykawski, T., & Dulski, M. (2019). Qatranaite, CaZn2(OH)6∙2H2O: a new mineral from altered pyrometamorphic rocks of the Hatrurim Complex, Daba-Siwaqa, Jordan. European Journal of Mineralogy, 31(3), 575–584. doi:10.1127/ejm/2019/0031-2833
Fleurance, S., Cuney, M., Malartre, F., & Reyx, J. (2013). Origin of the extreme polymetallic enrichment (Cd, Cr, Mo, Ni, U, V, Zn) of the Late Cretaceous–Early Tertiary Belqa Group, central Jordan. Palaeogeography, Palaeoclimatology, Palaeoecology, 369, 201-219.
  • Irbid Governorate
    • Maqarin area
Khoury, H. N., Salameh, E., & Abdul-Jaber, Q. (1985). Characteristics of an unusual highly alkaline water from the Maqarin area, northern Jordan. Journal of Hydrology, 81(1), 79-91.
Middle East
 
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
New Zealand
 
  • Northland Region
    • Kaipara District
      • Tokatoka
Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
Palestine
 
  • West Bank
    • Quds Governorate
Galuskin, E.V., Gfeller, F., Armbruster, T., Sharygin, V.V., Galuskina, I.O., Krivovichev, S.V., Vapnik, Y., Murashko, M., Dzierżanowski, P., Wirth, R. (2015): Mayenite supergroup, part III: Fluormayenite, Ca12Al14O32[□4F2], and fluorkyuygenite, Ca12Al14O32[(H2O)4F2], two new minerals from pyrometamorphic rocks of the Hatrurim Complex, South Levant. European Journal of Mineralogy, 27, 123-136.
Sokol, E.V., Gaskova, O.L., Kokh, S.N., Kozmenko, O.A., Seryotkin, Y.V., Vapnik, Y., Murashko, M.N. (2011): Chromatite and its Cr3+- and Cr6+-bearing precursor minerals from the Nabi Musa Mottled Zone complex, Judean Desert. American Mineralogist 96, 659-674.; Rafał Juroszek, Biljana Krüger, Yevgeny Vapnik, Irina Galuskina, Evgeny Galuskin (2018) Blue afwillite from Ma’ale Adummim, Judean Desert, Israel. in abstracts of the 22nd IMA Meeting Melbourne p 357; Juroszek, R.; Krüger, B.; Galuskina, I.; Krüger, H.; Tribus, M.; Kürsten, C. (2020) Raman Spectroscopy and Single-Crystal High-Temperature Investigations of Bentorite, Ca6Cr2(SO4)3(OH)12·26H2O. Minerals 10, 38.
Romania
 
  • Brașov
    • Racoş
Szakáll, S., Kristály, F., 2010. Mineralogy of Székelyland, Eastern Transylvania, Romania. Sfântu Gheorghe-Miercurea Ciuc-Târgu Mureş. 2010.
  • Caraş-Severin
Marincea, S., Dumitraş. D-G., Ghinet, C, Fransolet, A.-M., Hatert, F. & Rondeaux, M. (2011): Gehlenite from three occurrences of high-temperature skarns, Romania: new mineralogical data. Canadian Mineralogist. 49, 1001-1014
  • Harghita
    • Odorheiu Secuiesc (Székelyudvarhely; Oderhellen)
      • Racoş (Racoşu de Jos)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
  • Hunedoara
    • Hunedoara
Marincea, Ş., Dumitraş, D. G., Călin, N., Anason, A. M., Fransolet, A. M., & Hatert, F. (2013). Spurrite, tilleyite and associated minerals in the exoskarn zone from Cornet Hill (Metaliferi Massif, Apuseni Mountains, Romania). The Canadian Mineralogist, 51(3), 359-375.
Russia
 
  • Kabardino-Balkaria
    • Baksan Valley
Bailau, R., Gałuskin, E. V., Gazeev, V. M., & Gałuskina, I. O. Raman investigation of potential new mineral-Fe 3-analogue of wadalite from calcareous-silicate xenoliths of the Upper Chegem caldera, Northern Caucasus, Russia.
        • Lakargi Mountain
Galuskina, I.O., Krüger, B., Galuskin, E.V. ,Armbruster, T., Gazeev, V.M., Włodyka, R., Dulski, M. & Dzierżanowski, P. (2015): Fluorchegemite, Ca7(SiO4)3F2, a new mineral from the edgrewitebearing endoskarn zone of an altered xenolith in ignimbrites from Upper Chegem Caldera, Northern Caucasus, Kabardina-balkaria, Russia; Occurrence, crystal structure, and new data on the mineral assemblages. Canadian Mineralogist. 53, 325-344.
Galuskin, E.V., Galuskina, I.O., Gazeev, V.M., Dzierżanowski, P., Prusik, K., Pertsev, N.N., Zadov, A.E., Bailau, R., Gurbanov, A.G. (2011): Megawite, CaSnO3: a new perovskite-group mineral from skarns of the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus, Russia. Mineralogical Magazine, 75, 2563-2572.
  • Krasnoyarsk Krai
    • Evenkiysky District
      • Nizhnyaya Tunguska River Basin (Lower Tunguska River)
No reference listed
  • Zabaykalsky Krai
    • Buriatia Republic (Buryatia)
      • Severo-Baykalsky District
        • Dovyren Highlands
American Mineralogist, Volume 94, pages 323–333, 2009
South Africa (TL)
 
  • Northern Cape
    • Frances Baard
      • Sol Plaatje
        • Kimberley
          • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
Parry, J., Wright, F.E. (1925) Afwillite, a new hydrous calcium silicate, from Dutoitspan mine, Kimberley, South Africa. Mineralogical Magazine: 20: 277-285; Clark (1993) Hey's Mineral Index, 3rd Edition.
    • Kalahari manganese field
      • Hotazel
Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, PO Box 44283, Linden 2104, South Africa pg 180
      • Kuruman
        • N'Chwaning Mines
Von Bezing, K.L., Dixon, R.D., Pohl, D., Cavallo, G. (1991) The Kalahari (Afrique du Sud) manganese field: an update. The Mineralogical Record: 22(3): 279-302.
Cairncross, B., Dixon, R. (1995) Minerals of South Africa. Geological Society of South Africa, PO Box 44283, Linden 2104, South Africa pg 180
UK
 
  • Northern Ireland
    • Co. Antrim
      • Glenoe
Nawaz, R. (1977). A second occurrence of killalaite. Mineralogical Magazine, 41, 546-548.
      • Larne
Tilley, C.E. (1930) An association of afwillite and spurrite. Geological Magazine: 67: 168-169.; Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 590.; Strübel, Zimmer (1991) Lexikon der Minerale. 2nd Ed., 1991.; Tilley, C.E. (1942) Tricalcium disilicate (rankinite), a new mineral from Scawt Hill, Co. Antrim. Mineralogical Magazine: 26(176): 190-197.
USA
 
  • California
    • Riverside Co.
      • Crestmore
        • Crestmore quarries
          • Sky Blue Hill
Switzer, G. and Bailey, E.H. (1953) Afwillite from Crestmore, California. American Mineralogist: 38: 629-633.; Murdoch, Joseph (1954) Scawtite and bultfonteinite from Crestmore, California. (abstract): Geological Society of America Bulletin: 65: 1347-1348.; Murdoch, Joseph (1955) Scawtite from Crestmore, California. American Mineralogist: 40: 505-509.
  • Missouri
    • Washington Co.
Sherwood, M. D., & Williams, G. A. (1998). Missouri mineral locality index. Rocks & Minerals, 73(2), 98-117.
 
Mineral and/or Locality  
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