Erionite-K (original) (raw)

A valid IMA mineral species

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About Erionite-KHide

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Formula:

(K2,Ca,Na2)2[Al4Si14O36] · 15H2O

Name:

Named in 1898 by Arthur Starr Eakle from the Greek εριον meaning wool in allusion to the "wooly" appearance of the type material. Erionite was first found at the Durkee Fire Opal Mine, Swayze Creek, Durkee, Baker Co., Oregon (Tschernich, 1992). In modern nomenclature, the original erionite was erionite-Na, but potassium was nearly equal to sodium. Levinson Rule suffix added in allusion to K dominant excangable cations.

A zeolite difficult to distinguish from offretite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:6916:4

9d13936f-7ed0-42e2-abf7-85dd5f2743b8

IMA Classification of Erionite-KHide

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IMA Formula:

K10[Si26Al10O72] · 30H2O

Classification of Erionite-KHide

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9.GD.20

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol Source Reference
Eri-K IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Eri Whitney & Evans (2010) Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
Eri Warr (2020) Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261–264 doi:10.1180/clm.2020.30

Physical Properties of Erionite-KHide

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Optical Data of Erionite-KHide

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RI values:

_n_ω = 1.471 _n_ε = 1.474

δ = 0.003

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of Erionite-KHide

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Mindat Formula:

(K2,Ca,Na2)2[Al4Si14O36] · 15H2O

Chemical AnalysisHide

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Empirical formulas:

Sample ID Empirical Formula
1 (K2.63Ca1.57Mg0.76Na0.13Ba0.01)[Si28.62Al7.35]O72·28.3H2O

Crystallography of Erionite-KHide

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Class (H-M):

6/m m m _(_6/_m_2/_m_2/m ) - Dihexagonal Dipyramidal

Cell Parameters:

a = 13.227(1) Å, c = 15.075(3) Å

Unit Cell V:

2,284.08 ų (Calculated from Unit Cell)

Comment:

Cell parameters from Passaglia et al. 1998.

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0004973 Erionite-K Ballirano P, Andreozzi G B, Dogan M, Dogan A U (2009) Crystal structure and iron topochemistry of erionite-K from Rome, Oregon, U.S.A. American Mineralogist 94 1262-1270 2009 Rome, Oregon, USA 0 293
0014439 Erionite-K Staples L W, Gard J A (1959) The fibrous zeolite erionite; its occurrence, unit cell, and structure Mineralogical Magazine 32 261-281 1959 Durkee opal mine, Swayze Creek, Baker County, Oregon, USA 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
11.43 Å (100)
6.60 Å (53)
4.32 Å (52)
3.81 Å (29)
3.75 Å (50)
2.858 Å (40)
2.843 Å (39)
2.808 Å (33)

Comments:

Data from Eberly 1964; type material.

Geological EnvironmentHide

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Type Occurrence of Erionite-KHide

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Place of Conservation of Type Material:

No designated type material.

Other Language Names for Erionite-KHide

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Relationship of Erionite-K to other SpeciesHide

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Other Members of this group:

Erionite-Ca (Ca,K2,Na2)2[Al4Si14O36] · 15H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
Erionite-Na (Na2,K2,Ca)2[Al4Si14O36] · 15H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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9.GD.05 Gmelinite-Ca Ca2(Si8Al4)O24 · 11H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
9.GD.05 Gmelinite-K K4(Si8Al4O24) · 11H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
9.GD.05 Gmelinite-Na Na4(Si8Al4)O24 · 11H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
9.GD.10 Willhendersonite KCa[Al3Si3O12] · 5H2O Tric. 1 : _P_1
9.GD.10 Chabazite-Ca (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O Tric. 1 : _P_1
9.GD.10 Chabazite-K (K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O Trig. 3_m_ _(_32/m ) : R_3_m
9.GD.10 Chabazite-Na (Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O Trig. 3_m_ : R_3_m
9.GD.10 Chabazite-Sr Sr2[Al2Si4O12]2 · 12H2O Trig. 3_m_ _(_32/m ) : R_3_m
9.GD.10 Chabazite-Mg (Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O Trig. 3_m_ _(_32/m ) : R_3_m
9.GD.15 Lévyne-Ca (Ca,Na2,K2)[Al2Si4O12] · 6H2O Trig. 3_m_ _(_32/m ) : R_3_m
9.GD.15 Lévyne-Na (Na2,Ca,K2)[Al2Si4O12] · 6H2O Trig. 3_m_ _(_32/m ) : R_3_m
9.GD.20 Bellbergite (K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O Hex.
9.GD.20 Erionite-Ca (Ca,K2,Na2)2[Al4Si14O36] · 15H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
9.GD.20 Erionite-Na (Na2,K2,Ca)2[Al4Si14O36] · 15H2O Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m m c
9.GD.25 Offretite KCaMg(Si13Al5)O36 · 15H2O Hex. 6_m_2 : _P_6_m_2
9.GD.25 Wenkite (Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2O Hex. 6_m_2 : P_62_m
9.GD.30 Faujasite-Ca (Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O Iso. m_3_m _(_4/_m_32/m ) : F d_3_m
9.GD.30 Faujasite-Mg (Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O Iso. m_3_m _(_4/_m_32/m ) : F d_3_m
9.GD.30 Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O Iso. m_3_m _(_4/_m_32/m ) : F d_3_m
9.GD.35 Maricopaite Pb7Ca2(Si,Al)48O100 · 32H2O Orth.
9.GD.35 Mordenite (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O Orth.
9.GD.40 Dachiardite-K K4(Si20Al4O48) · 13H2O Mon.
9.GD.40 Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96 · 25H2O Mon. 2/m : _B_2/m
9.GD.40 Dachiardite-Na (Na2,Ca,K2)5Al10Si38O96 · 25H2O Mon. 2/m : _B_2/m
9.GD.45 Epistilbite CaAl2Si6O16 · 5H2O Mon.
9.GD.50 Ferrierite-K (K,Na)5(Si31Al5)O72 · 18H2O Orth. m m m _(_2/_m_2/_m_2/m ) : I m m m
9.GD.50 Ferrierite-Mg [Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2O Orth. m m m _(_2/_m_2/_m_2/m ) : P n n m
9.GD.50 Ferrierite-Na (Na,K)5(Si31Al5)O72 · 18H2O Mon. 2/m
9.GD.50 Ferrierite-NH4 (NH4,Mg0.5)5(Al5Si31O72) · 22H2O Orth. m m m _(_2/_m_2/_m_2/m ) : I m m m
9.GD.55 Bikitaite LiAlSi2O6 · H2O Tric. 1 : _P_1

Other InformationHide

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Health Risks:

Carcinogenic upon inhalation of its dust, due to its fibrous structure (Ref.: IARC Monography 42:225-239, 1987)

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References for Erionite-KHide

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Reference List:

Gualtieri, A., Artioli, G., Passaglia, E., Bigi, S., Viani, A., Hanson, J. C. (1998) Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite. American Mineralogist, 83 (5) 590-606 doi:10.2138/am-1998-5-619

Giacobbe, Carlotta, Moliterni, Anna, Di Giuseppe, Dario, Malferrari, Daniele, Wright, Jonathan P., Mattioli, Michele, Ranieri, Simona, Giannini, Cinzia, Fornasini, Laura, Mugnaioli, Enrico, Ballirano, Paolo, Gualtieri, Alessandro F. (2023) The crystal structure of the killer fibre erionite from Tuzköy (Cappadocia, Turkey) IUCrJ, 10 (4) 397-410 doi:10.1107/s2052252523003500

Localities for Erionite-KHide

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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

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Canada
British Columbia Kamloops Mining Division Falkland ⓘ Chase Creek American Mineralogist +1 other reference
Mt. Savona Deadman's River ⓘ Pass Valley Tschernich (1992)
China
Zhejiang Hangzhou Chun'an County ⓘ Xilong Letian Du and Wenguang Wang (2012)
Czech Republic
Liberec Region Česká Lípa District Polevsko ⓘ Poustevna Pauliš et al. (2019)
Ústí nad Labem Region Děčín District Česká Kamenice ⓘ Jehla (Nolde; Kleine Nolde) Pauliš et al. (2015) +1 other reference
Krásná Lípa ⓘ Vápenka P.Pauliš et al. (2014)
Germany
Hesse Darmstadt Wetteraukreis Ortenberg ⓘ Gaulsberg quarry Dogan et al. (2008)
New Zealand
Canterbury Region Ashburton District ⓘ Gawler Downs Rod Martin Collection
Otago Region ⓘ Moeraki Point J. Thornton in Micro-Scope
Spain
Andalusia Almería Níjar Cabo de Gata volcanic complex ⓘ Agua Amarga Paragénesis.Revista de Mineralogia. ...
Turkey
Nevşehir Province Gülşehir District ⓘ Tuzköy (Tuzkoy) Giacobbe et al. (2023)
UK
Northern Ireland Co. Antrim ⓘ Giant's Causeway Luigi Matei photo
Ukraine
Crimea Feodosia area ⓘ Karadag Reserve (Kara-Dag) Domenico Preite
USA
Arizona Graham County Ash Peak Mining District Thumb Butte area ⓘ Thumb Butte Tschernich (1992)
Maricopa County ⓘ Horseshoe Dam area (Horseshoe Dam Clinoptilolite occurrence) AM61_853
Pinal County Dudleyville Malpais Hill ⓘ Middle railway cut Bideaux et al. (1960) +2 other references
ⓘ North railway cut azminerals.com
ⓘ South railway cut Bideaux et al. (1960) +2 other references
Santa Cruz County Patagonia Mountains Patagonia Mining District Guajolote Flat ⓘ Red Mountain Mine (Red Mountain claims) Anthony et al. (1995)
Nevada Lander County Steiner Canyon Mining District ⓘ Reese River zeolite deposit Dogan et al. (2008)
Oregon Baker County Swayze Creek ⓘ Durkee Opal Mine Tschernich (1992)
Lincoln County Agate Beach ⓘ Yaquina Head Quarry Micro Probe Vol. 9 No. 3 +1 other reference
Malheur County ⓘ Rome (TL) The Canadian Mineralogist Vol. 35 (1997) +1 other reference
Washington Douglas County ⓘ Rock Island Dam Tschernich et al. (1982) +1 other reference