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Hydroxyapophyllite-(K)

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Formula:
KCa4(Si8O20)(OH,F) · 8H2O
System:
Tetragonal
Hardness:
4 - 5
Name:
Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo) and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. Chemical variants were recognized by Pete J. Dunn, Roland C. Rouse, and Julie A. Norberg in 1978.
Fluorapophyllite-(K)-Hydroxyapophyllite-(K) Series.


Mineral name changed from apophyllite-(KOH) to hydroxyapophyllite-(K) (Hatert et al. 2013)

Classification of Hydroxyapophyllite-(K)

Approved
9.EA.15

9 : SILICATES (Germanates)
E : Phyllosilicates
A : Single nets of tetrahedra with 4-, 5-, (6-), and 8-membered rings
17.1.6

17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
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First Recorded Occurrence of Hydroxyapophyllite-(K)

Year of Discovery:
1978

Physical Properties of Hydroxyapophyllite-(K)

Hardness (Mohs):
4 - 5

Crystallography of Hydroxyapophyllite-(K)

Crystal System:
Tetragonal
Cell Parameters:
a = 8.97Å, c = 15.83Å
Ratio:
a:c = 1 : 1.765
Unit Cell Volume:
V 1,273.70 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 Hydroxyapophyllite-(K)

Type:
Uniaxial (+)
RI values:
nω = 1.542 nε = 1.543
Max Birefringence:
δ = 0.001
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of Hydroxyapophyllite-(K)

Formula:
KCa4(Si8O20)(OH,F) · 8H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Al,Na

Relationship of Hydroxyapophyllite-(K) to other Species

Series:
Forms a series with Fluorapophyllite-(K) (see here)
9.EA.05CuprorivaiteCaCu[Si4O10]
9.EA.05GillespiteBaFe2+[Si4O10]
9.EA.05EffenbergeriteBaCu[Si4O10]
9.EA.05WesselsiteSrCu[Si4O10]
9.EA.10Ekanite(Ca,Fe2+,Pb)2(Th,U)[Si8O20]
9.EA.15Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
9.EA.15Fluorapophyllite-(Na)NaCa4(Si8O20)F · 8H2O
9.EA.20MagadiiteNa2Si14O29 · 11H2O
9.EA.25DalyiteK2ZrSi6O15
9.EA.25DavaniteK2TiSi6O15
9.EA.30Sazhinite-(Ce)Na3Ce[Si6O15] · 6H2O
9.EA.30Sazhinite-(La)Na3La[Si6O15] · 2H2O
9.EA.35ArmstrongiteCaZr[Si6O15] · 3H2O
9.EA.40OkeniteCaSi2O5 · 2H2O
9.EA.45NekoiteCa3Si6O15·7H2O
9.EA.50CavansiteCa(VO)Si4O10 · 4H2O
9.EA.55PentagoniteCa(VO)Si4O10 · 4H2O
9.EA.60PenkvilksiteNa4Ti2Si8O22 · 4H2O
9.EA.60TumchaiteNa2Zr(Si4O11) · 2H2O
9.EA.65NabesiteNa2BeSi4O10 · 4H2O
9.EA.70Ajoite(K,Na)Cu7AlSi9O24(OH)6 · 3H2O
9.EA.75ZeravshaniteNa2Cs4Zr3[Si18O45]*2H2O
9.EA.80Bussyite-(Ce)(Ce,REE)3(Na,H2O)6MnSi9Be5(O,OH)30F4
9.EA.85PlumbophyllitePb2Si4O10 · H2O
17.1.1HectoriteNa0.3(Mg,Li)3(Si4O10)(F,OH)2
17.1.3AgrelliteNaCa2Si4O10F
17.1.4Fluorapophyllite-(Na)NaCa4(Si8O20)F · 8H2O
17.1.5Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) · 8H2O
17.1.7HsianghualiteCa3Li2(Be3Si3O12)F2
17.1.8LeucophaniteNaCaBeSi2O6F
17.1.9NorbergiteMg3(SiO4)(F,OH)2
17.1.10Chondrodite(Mg,Fe2+)5(SiO4)2(F,OH)2
17.1.11Humite(Mg,Fe2+)7(SiO4)3(F,OH)2
17.1.12ClinohumiteMg9(SiO4)4F2
17.1.13CanasiteK2Na4Ca5(Si12O30(OH,F)4
17.1.14Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2O
17.1.15CuspidineCa4(Si2O7)(F,OH)2
17.1.16BultfonteiniteCa2(HSiO4)F · H2O
17.1.17ZeophylliteCa13(Si10O28)F10 · 6H2O
17.1.18Rowlandite-(Y)(Y,Ce)4Fe2+(Si2O7)2F2 (?)
17.1.19Yuksporite(K,Ba)NaCa2(Si,Ti)4O11(F,OH) · H2O
17.1.20Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)6
17.1.21Mosandrite(◻,Ca,Na)3(Ca,REE)4Ti(Si2O7)2[H2O,OH,F]4 · H2O
17.1.22Hiortdahlite(Ca,Na)3(Zr,Ti)(Si2O7)(O,OH,F)2
17.1.23BurpaliteNa2CaZr(Si2O7)F2
17.1.24SeidozeriteNa8Mn22+Zr3Ti3(Si2O7)4O4F4
17.1.25ThorosteenstrupineCaMnThSi4O11(OH)F · 6H2O
17.1.26Zircophyllite(K,Na)3(Mn,Fe2+)7(Zr,Ti)2Si8O24(O,OH,F)7
17.1.27JinshajiangiteBaNaFe42+Ti2(Si2O7)2O2(OH)2F
17.1.28Rosenbuschite(Ca,Na)3(Zr,Ti)(Si2O7)OF
17.1.29NarsarsukiteNa4(Ti,Fe)2[Si8O20](O,OH,F)2
17.1.30SonoliteMn92+(SiO4)4(OH,F)2

Other Names for Hydroxyapophyllite-(K)

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 Hydroxyapophyllite-(K)

Reference List:
Dunn, P. J., Rouse, R. C. & Norberg, J. A. (1978): Hydroxyapophyllite, a new mineral and a redefinition of the apophyllite group. American Mineralogist 63, 196-202.

Dunn, P. J. & Wilson, W. E. (1978): Nomenclature revision in the apophyllite group: hydroxyapophyllite, apophyllite, fluorapophyllite. Min. Record 9, 95-98.

Acta Crystallographica: (1987): B43: 517.

HATERT, F., MILLS, S.J., PASERO, M. and WILLIAMS, P.A. (2013) CNMNC guidelines for the use of suffixes and prefixes in mineral nomenclature, and for the preservation of historical names. European Journal of Mineralogy 25, 113-115.

Internet Links for Hydroxyapophyllite-(K)

Specimens:
The following Hydroxyapophyllite-(K) specimens are currently listed for sale on minfind.com.

Localities for Hydroxyapophyllite-(K)

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.
Australia
 
  • New South Wales
    • Buckland Co.
      • Ardglen
Mineralogical Record Vol19 No.6 p389; Tschernich, R.(1992), Zeolites of the World, p.48 Hodge-Smith, T., 1924. Notes on the occurrence of Zeolites, Ardglen, New South Wales. Records of the Australian Museum 14(3): 213–222
  • Tasmania
    • Burnie district
      • Ridgley
Ref: FL Sutherland & RS Bottrill (2004) Zeolites of western Tasmania. Australian Jornal of Mineralogy 10:2 pp 59-72
    • Cape Grim district
Sutherland, F. & Bottrill, R.(2004): Zeolites of western Tasmania. Australian Jornal of Mineralogy 10:2 pp 59-72; Tschernich, R. (1992): Zeolites of the World, p.49
  • Western Australia
    • Leonora Shire
      • Leinster
Grguric, B.A., Nickel, E.H. (2005) Okenite from the Perseverance nickel mine, Western Australia: a first Australian occurrence. Australian Journal of Mineralogy, Vol. 11, pg. 25-26.
Austria
 
  • Styria
    • Fischbacher Alpen
      • St. Jakob-Breitenau
        • Eibegggraben
Postl, W. et al. (2008)
Canada
 
  • Northwest Territories
Anton R. Chakhmouradian and Roger H. Mitchell (2001) Three compositional varieties of perovskite from kimberlites of the Lac de Gras Field (Northwest Territories, Canada). Mineralogical Magazine 65:133-148
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
Chile
 
  • Atacama Region
    • Copiapó Province
      • Inca de Oro
Maurizio Dini & Robert Jenkins collections; material analysed by Dr. Uwe Kolitsch & Bob Jenkins
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
Lapis 2002(7/8), 63-65
Finland
 
  • Southern Finland Region
    • Lappeenranta
Hytönen,K. (1999): Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pp.
    • Luumäki
Ilkka Mikkola collection
Arhe, Markku 1980. Iitin Perheniemen kalkkiivi-karsi esiintymästä ja sen ympäristön geologiasta. 155 s., 16 l. Geologian Tutkimuskeskus, arkistoraportti M/3111/-80/1/10.
  • Southwestern Finland Region
    • Laitila
Joel Dyer Collection
Germany
 
  • Bavaria
    • Franconia
      • Fichtelgebirge
        • Selb
          • Längenau
Keck, E. (2008): Der Wartberg bei Längenau, nordöstlich von Selb, in Oberfranken. Aufschluss 59, 109-128.
  • Hesse
    • Greifenstein
      • Allendorf
Betz, V., Leinweber, A., Klein, E. und Wahl, H. (2011): Prächtige Zeolithe: Die Mineralien des Steinbruchs "Alter Stein" bei Allendorf im Ulmtal, Westerwald, Hessen. Lapis, 36 (2), 15-38; 54.
  • Rhineland-Palatinate
    • Eifel
      • Gerolstein
        • Roth
Blaß, G. & Schüller, W. (2012): Der Rother Kopf in der Vulkaneifel. Lapis, 37 (3), 20-29.
      • Kelberg
        • Höchstberg
- Blass, G., (2010): Die neuen Mineralienfunde aus der Vulkaneifel, Mineralienwelt, Vol. 05
Hungary
 
  • Fejér Co.
    • Szár Hill
      • Kőszárhegy
Szakáll: Minerals of Szár Hill, 2004
  • Veszprém Co.
    • Balaton Uplands
      • Bazsi
        • Prága Hill
Szakáll & Gatter, 1993; KOVÁCS-PÁLFFY, P. et al. (2005): A Karikás-tető (Prága-hegy, Balaton-felvidék) bazaltjának üregkitöltő ásványai [The cavity filling minerals of the basalt from Karikás-tető (Prága Hill, Balaton Highland, Transdanubia)]. A Magyar Állami Földtani Intézet Évi Jelentése, 95-118. [http://www.mafi.hu/microsites/EJ_digi/EJ_2005PDF/Kovacs_Palffy.pdf]
      • Tapolcai Basin
        • Uzsa (Uzsabánya)
Szakáll & Gatter, 1993
India
 
  • Maharashtra
    • Mumbai District (Bombay District)
      • Mumbai (Bombay)
        • Ward 38
          • Malad
Personal experience-Rock Currier
Wise, W.S. (1978): Yugawaralite from Bombay, India. Mineralogical Record 9 (5): 296
    • Pune District (Poonah District)
Rock Currier
Rock Currier photo
Italy
 
  • Latium
    • Rieti Province
      • Rieti
        • Santa Rufina
XRD analysis at Bari University
  • Liguria
    • La Spezia Province
      • Vara Valley
        • Borghetto Vara
XRD analysis
  • Sicily
    • Catania Province
      • Northern Iblean plateau
Gemellaro, G.G. (1856): Descrizione d'alcune specieminerali dei vulcani estinti di Palagonia. Memoria II. Atti dell'Accademia Gioenia di Scienze Naturali, Serie II, 12, 145-157
  • Trentino-Alto Adige (Trentino-Südtirol)
    • Trento Province
      • Lagarina Valley
        • Mt. Baldo
          • Ala
            • Pilcante
- Boscardin M., Bortolozzi G. and Cassinelli C. (1984): I minerali della cava di Val di Serra, Pilcante, Trento. Riv. Mineral. Ital., 4, 143-148.
  • 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
      • Altissimo
        • Del Tesoro Mt.
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
      • Gambellara
        • S.Marco hill
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
      • Montecchio Maggiore
        • San Pietro
- 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
      • San Vito di Leguzzano-Schio
Boscardin M., Daleffe A., Rocchetti I., Zordan A. “I minerali nel Vicentino”, Museo “G. Zannato”, Montecchio Maggiore (Vicenza), 2011.
      • San Vito di Leguzzano
Boscardin, M., Pegoraro, S.(2000): La natrolite del vicentino. Rivista
Boscardin, M., Mietto, P., Pegoraro, S., Orlandi, P., Secco, L.(2000):
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Kenya
 
  • Rift Valley Province
    • Mount Elgon
Paolo Forti - Genetic processes of cave minerals in volcanic environments: An overview. Journal of Cave and Karst Studies, v. 67, no. 1, p. 3-13.
Mexico
 
  • Chihuahua
    • Mun. de Aquiles Serdán
      • Santa Eulalia District
        • West Camp
          • Francisco Portillo
Panczner(1987).
Panczner (1987):94-366.
  • Guanajuato
    • Mun. de Guanajuato
      • Guanajuato
Panczner (1987): 79-364.
      • La Luz
Panczner(1987): 79 - 369.
Panczner (1987): 236.
  • Hidalgo
    • Mun. de Pachuca
      • Pachuca de Soto (Pachuca)
Panczner (1987): 87-344.
  • Zacatecas
    • Mun. de Mazapil
      • Noche Buena
Panczner (1987): 100-378.
Namibia
 
  • Khomas Region
    • Windhoek District
      • Aris
[http://www.koeln.netsurf.de/~w.steffens/aris.htm]
Norway
 
  • Nordland
    • Fauske
      • Sulitjelma
        • Sulitjelma Cu Mines
Larsen, A.O.(1980): Fluorapofyllitt og hydroksyapofyllitt. NAGS-nytt 7(2),36-37 (in norwegian)
    • Rana
      • Mofjellet
Larsen, A.O. (1980): Fluorapofyllitt og hydroksyapofyllitt. NAGS-nytt 7(2), 36-37 (in Norwegian.; Larsen, A.O. (1981): Hydroxyapophyllite from the Mofjellet mine, Mo i Rana, northern Norway. Contributions to the Mineralogy of Norway, No. 66. Norsk Geologisk Tidsskrift. 61, 297-300
Romania
 
  • Hunedoara Co.
    • Brad
www.minerals-of-the carpathians.eu (2009)
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
www.koeln.netsurf.de/~w.steffens/lovo.htm
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Asbest
Igor Savin data
    • Southern Urals
      • Chelyabinsk Oblast'
        • Ufaley District (Ufalei District)
Talovina, I.V., Lazarenkov, V.G., and Vorontsova, N.I. (2003): Lithology and Mineral Resources 38(5), 403-415.
South Africa
 
  • Mpumalanga Province
    • Nkangala District
      • Belfast
Minerals of South Africa
      • Middelburg
Cairncross, B. & Windisch, W.(1998): Microminerals from the Bushveld Complex South Africa. Mineralogical Record 29: 461-465
  • Northern Cape Province
    • Francis Baard District
American Mineralogist, Volume 63, pages 196-202, 1978
    • Kalahari manganese field
      • Hotazel
Gutzmer, J. & Cairncross, B. (1993): Recent discoveries from the Wessels mine South Africa. Mineralogocal Record 24 (5): 365-368
      • Kuruman
        • N'Chwaning Mines
[Von Bezing, K. L. et al. (1991) - The Kalahari (Afrique du Sud) manganese field : an update, Mineralogical Record, 22 (3), 279-302.]
Minerals of South Africa
UK
 
  • England
    • Co. Durham
      • North Pennines
        • Weardale
          • Copthill
No reference listed
  • Scotland
    • North West Highlands (Inverness-shire)
      • Isle of Skye
        • Duirinish
          • Dunvegan
[UKJMM 16:21-27]
Ukraine
 
  • Crimea Oblast'
    • Crimea peninsula
      • Bakhchisaray area
        • Trudolyubovka Village
Karpenko V., Ignatenko K. Babingtonite form the Pervomaiskii quarry in the Crimea // Novye dannye o mineralakh (New Data on Minerals), 1991, #37, 58 - 63 (in Russ.) Getling R.V. Datolith of the Bodrak area in the Crimea and some features of his genesis // ZVMO, 1960, vol. 89, #1, 102 - 106 (in Russ.)
Tischenko A. data
USA
 
  • Arizona
    • Gila Co.
      • Dripping Spring Mts
        • Banner District
          • Christmas area
            • Christmas
RRUFF Project Specimen ID: R050169
    • Maricopa Co.
Richard Bideaux, Mineralogy ofArizona, 3rd ed.
  • California
    • Tulare Co.
      • Dumtah
Mineralogical Record: 34(2): 159-166
    • Ventura Co.
      • Santa Monica Mts
http://www.mindat.org/article.php/801/Tungusite+in+the+Santa+Monica+Mountains%2C+Los+Angeles+and+Ventura+Counties+CA
  • Nevada
    • Eureka Co.
      • Lynn District
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Jersey
    • Passaic Co.
      • Little Falls Township
American Mineralogist, Volume 63, pages 196-202, 1978
John Betts specimens for sale
      • Prospect Park
MinRecord 9:89-92
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Dunn(1995):Pt4:497.
  • New York
    • Lewis Co.
      • Diana Township
Chamberlain, Steven C., Vandall T. King, Donald Cooke, George W. Robinson & Wayne Holt (1999), Minerals of the Gouverneur Talc Company No. 4 Quarry (Valentine deposit), Town of Diana, Lewis County, New York: Rocks & Minerals: 74(4): 236-249 (July, 1999).
  • North Carolina
    • Ashe Co.
      • Ore Knob
Joseph A. Mandarino and Malcolm E. Back , 2004, Fleischers Glossary of Mineral Species 2004; American Mineralogist, Volume 63, pages 196-202, 1978
    • Cleveland Co.
      • Kings Mountain District
Carolina Geological Society Field Trip Guidebook 1981, 39-48. Wilson,W.F and McKenzie.,1980,Mineral Collecting Sites In North Carolina, pp#50
  • Pennsylvania
    • Lebanon Co.
      • Cornwall Borough (Cornwall)
Kearns, L.E. & Kearns, C.A. (2008) Mineral News, 24, #1, 8-9.
  • Virginia
    • Fairfax Co.
      • Culpeper Basin
        • Centreville
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25--27.
    • Loudoun Co.
      • Chantilly
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
      • Conklin
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
      • Leesburg
Joseph Freillich specimen;
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
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