Heklaite

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Polk County Mine, Polk Co., Florida, USA

Formula:

KNaSiF

System:

Orthorhombic

Name:

For the type locality.

This page provides mineralogical data about Heklaite.

Classification of Heklaite

IMA status:

Approved 2008

Dana 8th edition ID:

11.5.8.

11 : HALIDE COMPLEXES
5 : A_mBX₆

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http://www.mindat.org/min-39218.html
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Type Occurrence of Heklaite

Type Locality:

Hekla, Iceland

Crystallography of Heklaite

Crystal System:

Orthorhombic

Class (H-M):

mmm (2/m 2/m 2/m) - Dipyramidal

Space Group:

Pnma {P2₁/n 2₁/m 2₁/a}

Cell Parameters:

a = 9.3370(9) Å, b = 5.5022(5) Å, c = 9.795(1) Å

Ratio:

a:b:c = 1.697 : 1 : 1.78

Unit Cell Volume:

V 503.21 Å³ (Calculated from Unit Cell)

X-Ray Powder Diffraction:

d-spacing		Intensity
4.33		(53)
4.26		(56)
3.40		(49)
3.37		(47)
3.34		(100)
2.251		(27)
2.050		(52)
2.016		(29)
		(

Chemical Properties of Heklaite

Formula:

KNaSiF

Essential elements:

F, K, Na, Si

All elements listed in formula:

F, K, Na, Si

Other Names for Heklaite

Synonyms:

IMA2008-052

Other Languages:

Other Information

Health Warning:

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

References for Heklaite

Reference List:

- +

Garavelli, A., Balić-Žunić, T., Mitolo, D., Acquafredda, P., Leonardsen, E., Jakobson, S.P. (2010): Heklaite, KNaSiF6, a new fumarolic mineral from Hekla volcano, Iceland. Mineralogical Magazine, 74, 147-157.

Internet Links for Heklaite

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External Links:

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Raman and XRD data at RRUFF project

American Mineralogist Crystal Structure Database

Mineral Dealers:

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Localities for Heklaite

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(TL) indicates type locality. ? 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.


Iceland
Hekla (TL)	Garavelli, A., Balić-Žunić, T., Mitolo, D., Acquafredda, P., Leonardsen, E., Jakobson, S.P. (2010): Heklaite, KNaSiF6, a new fumarolic mineral from Hekla volcano, Iceland. Mineralogical Magazine, 74, 147-157.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 29th Sep 2011 13:07:42