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Perlialite

A valid IMA mineral species

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Perlialite

Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

Perlialite

Eveslogchorr Mt, Murmansk Oblast, Russia

Perlialite, etc.

Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

Perlialite

Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

Perlialite

Eveslogchorr Mt, Murmansk Oblast, Russia

Perlialite, etc.

Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

Perlialite

Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

Perlialite

Eveslogchorr Mt, Murmansk Oblast, Russia

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About PerlialiteHide

Formula:

K₉Na(Ca,Sr)[Al₂Si₄O₁₂]₆ · 15H₂O

Colour:

White

Lustre:

Pearly

Hardness:

4 - 5

Specific Gravity:

2.14

Crystal System:

Hexagonal

Member of:

Zeolite Group

Name:

Named for Perekrest Lily Alekseevna (Лилия Алексеевна Перекрест) (1928 - ), Instructor of Mineralogy at the Kirov Mining Technical School, Kirovsk, Russia.

Co-Type Localities:

ⓘ Vuonnemiok River Valley, Murmansk Oblast, Russia
ⓘ Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

This page provides mineralogical data about Perlialite.

Unique IdentifiersHide

Mindat ID:

3163

Long-form identifier:

mindat:1:1:3163:5

IMA Classification of PerlialiteHide

IMA status:

Approved

IMA Formula:

K₉NaCa(Si₂₄Al₁₂)O₇₂·15H₂O

First published:

1984

Type description reference:

Men'chikov, Y.P. (1984) Perlialite K9Na(Ca,Sr)Al12Si24O72·15H2O, a new potassian zeolite from the Khibina massif. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 113(5): 607-612.

Classification of PerlialiteHide

Strunz-mindat (2026):

9.GC.25

9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H₂O; zeolite family
C : Chains of doubly-connected 4-membered rings

Dana 8th ed.:

77.1.3.8

77 : TECTOSILICATES Zeolites
1 : Zeolite group - True zeolites

Hey's CIM Ref.:

16.10.24

16 : Silicates Containing Aluminum and other Metals
10 : Aluminosilicates of Ca and alkalis

Mineral SymbolsHide

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

Symbol	Source	Reference for Standard
Pll	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of PerlialiteHide

Lustre:

Pearly

Transparency:

Translucent

Colour:

White

Hardness:

4 - 5 on Mohs scale

Tenacity:

Elastic

Density:

2.14 g/cm³ (Measured) 2.15 g/cm³ (Calculated)

Optical Data of PerlialiteHide

Type:

Uniaxial (+)

RI values:

n_ω = 1.483(2) n_ε = 1.488(2)

Max. Birefringence:

δ = 0.005
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Thickness: 30 µm Order divisions

Rotation:

Surface Relief:

Moderate (negative)
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.

Focus:

In focus

Interference Figure:

This shows the idealized uniaxial interference figure - the conoscopic (convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis centred and vertical. The coloured rings are isochromatics, computed with the same physics as the Michel-Lévy bar above; the dark cross is the isogyre.

For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.

Thickness: 30 µm

Dispersion:

relatively strong

Chemistry of PerlialiteHide

Mindat Formula:

K₉Na(Ca,Sr)[Al₂Si₄O₁₂]₆ · 15H₂O

Element Weights:

Element	% weight
O	49.099 %
Si	23.776 %
K	12.412 %
Al	11.421 %
Ca	1.414 %
H	1.067 %
Na	0.811 %

Calculated from ideal end-member formula.

Elements listed:

Al, Ca, H, K, Na, O, Si, Sr - search for minerals with similar chemistry

Common Impurities:

Ti,Fe,Mg

Crystallography of PerlialiteHide

Crystal System:

Hexagonal

Class (H-M):

6/mmm(6/m2/m2/m) - Dihexagonal Dipyramidal

Space Group:

P6/mmm

Cell Parameters:

a = 18.5432(4) Å, c = 7.5310(3) Å

Ratio:

a:c = 1 : 0.406

Unit Cell V:

2,242.60 Å³ (Calculated from Unit Cell)

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4

View
CIF File Best | x | y | z | a | b | c

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0006390	Perlialite	Artioli G, Kvick A (1990) Synchrotron X-ray Rietveld study of perlialite, the natural counterpart of synthetic zeolite-L European Journal of Mineralogy 2 749-759		1990		0	293
0006389	Perlialite	Artioli G, Kvick A (1990) Synchrotron X-ray Rietveld study of perlialite, the natural counterpart of synthetic zeolite-L European Journal of Mineralogy 2 749-759		1990		0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Perlialite'
loop_
_publ_author_name
'Artioli G'
'Kvick A'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 2 
_journal_year 1990
_journal_page_first 749
_journal_page_last 759
_publ_section_title
;
 Synchrotron X-ray Rietveld study of perlialite, the natural counterpart of synthetic zeolite-L
 Sample: data collected with conventional diffractometer radiation
;
_database_code_amcsd 0006390
_chemical_formula_sum 'K7.447 Tl3.813 (Si24 Al12) O95.24 H46.48'
_cell_length_a 18.5432
_cell_length_b 18.5432
_cell_length_c 7.5310
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 2242.604
_exptl_crystal_density_diffrn      2.694
_symmetry_space_group_name_H-M 'P 6/m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,z'
  'x,x-y,-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,z'
  '-x+y,y,-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,z'
  '-y,-x,-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
KA   0.33333   0.66667   0.00000   0.13000   0.11000
KB   0.33333   0.66667   0.50000   0.60000   0.02300
KB1   0.33333   0.66667   0.44300   0.20000   0.02300
KD   0.29900   0.00000   0.00000   0.52100   0.04030
TlD1   0.31500   0.00000   0.00000   0.47900   0.04030
KE   0.50000   0.00000   0.50000   0.68700   0.04400
TlE   0.50000   0.00000   0.50000   0.31300   0.04400
Si1   0.09180   0.35220   0.50000   0.66667   0.03100
Al1   0.09180   0.35220   0.50000   0.33333   0.03100
Si2   0.17030   0.49760   0.21720   0.66667   0.05600
Al2   0.17030   0.49760   0.21720   0.33333   0.05600
O1   0.00000   0.27600   0.50000   1.00000   0.03000
O2   0.16220   0.32440   0.50000   1.00000   0.02000
O3   0.26500   0.53000   0.28300   1.00000   0.05000
O4   0.10750   0.41490   0.33100   1.00000   0.02700
O5   0.41810   0.83620   0.26300   1.00000   0.06000
O6   0.16000   0.48900   0.00000   1.00000   0.04500
WatF   0.12000   0.00000   0.00000   0.10000   0.10000
WatH   0.13510   0.00000   0.36400   0.83000   0.11000
WatI   0.28800   0.14400   0.00000   0.53000   0.09000
WatJ   0.27400   0.13700   0.24000   0.42000   0.10000
WatK   0.00000   0.00000   0.19000   0.37000   0.10000
WatN   0.55300   0.27700   0.00000   0.31000   0.10000

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
16.0 Å	(10)
4.62 Å	(10)
1.306 Å	(10)
3.20 Å	(9)
2.674 Å	(8)
1.548 Å	(8)
6.0 Å	(7)

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 7: Great Oxidation Event	<2.4
47a : [Near-surface hydration of prior minerals]

Type Occurrence of PerlialiteHide

Co-Type Localities:

ⓘ Vuonnemiok River Valley, Murmansk Oblast, Russia
ⓘ Loparskaya Valley, Yukspor Mountain, Murmansk Oblast, Russia

General Appearance of Type Material:

Crystals acicular, in fibrous aggregates, radiating, to 2 cm.

Place of Conservation of Type Material:

Geology Museum, Kola Branch, Academy of Sciences, Apatity, Russia, 5773/1-2.
Mineralogical Museum, St. Petersburg University, St. Petersburg, Russia, 17945, 17953.
Mining Institute, St. Petersburg, Russia, 1675/1-2.
Il'menskii Preserve Museum, Miass, Russia, 4971.
Vernadsky Geological Museum, Moscow, Russia, 57643.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 83417.

Associated Minerals at Type Locality:

Reference:

Men'chikov, Y.P. (1984) Perlialite K9Na(Ca,Sr)Al12Si24O72·15H2O, a new potassian zeolite from the Khibina massif. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 113(5): 607-612.

Other Language Names for PerlialiteHide

Dutch:Perlialiet

German:Perlialit

Russian:Перлиалит

Simplified Chinese:硅铝铊石

Spanish:Perlialita

Relationship of Perlialite to other SpeciesHide

Member of:

Zeolite Group

Other Members of Zeolite Group:

Alflarsenite	NaCa₂Be₃Si₄O₁₃(OH) · 2H₂O	Mon. 2 : P2₁
Amicite	K₂Na₂Al₄Si₄O₁₆ · 5H₂O	Mon. 2
Ammonioleucite	(NH₄)(AlSi₂O₆)	Tet. 4/m : I4₁/a
Analcime	Na(AlSi₂O₆) · H₂O	Tric. 1 : P1
Arzamastsevite	K₆Al₅Si₆O₂₀(OH)₄Cl	Tet. 42m : I42m
Bellbergite	(K,Ba,Sr)₂Sr₂Ca₂(Ca,Na)₄[Al₃Si₃O₁₂]₆ · 30H₂O	Hex.
Bikitaite	LiAlSi₂O₆ · H₂O	Tric. 1 : P1
Boggsite	Ca₈Na₃(Si,Al)₉₆O₁₉₂ · 70H₂O	Orth. mmm(2/m2/m2/m) : Imma
Brewsterite Subgroup	Zeolite Group.
Chabazite-Levyne Subgroup	M[Al₂Si₄O₁₂] · 6H₂O
Chiavennite	CaMnBe₂Si₅O₁₃(OH)₂ · 2H₂O	Mon. 2/m : P2₁/b
Clinoptilolite Subgroup	(Na/Ca/K)_3-6[Al_6-7Si_29-30O₇₂] · 20H₂O
Cowlesite	CaAl₂Si₃O₁₀ · 6H₂O	Orth. mmm(2/m2/m2/m)
Dachiardite Subgroup	Zeolite Group.
Direnzoite	NaK₆MgCa₂(Al₁₃Si₄₇O₁₂₀) · 36H₂O	Orth. mmm(2/m2/m2/m) : Pmmn
Edingtonite	Ba[Al₂Si₃O₁₀] · 4H₂O	Orth. 222 : P2₁2₁2₁
Epistilbite	CaAl₂Si₆O₁₆ · 5H₂O	Mon.
Erionite Subgroup	M₂[Al₄Si₁₄O₃₆] · 15H₂O
Fabrièsite	Na₃Al₃Si₃O₁₂ · 2H₂O	Orth. mm2 : Pmm2
Faujasite Subgroup	M_3.5[Al₇Si₁₇O₄₈] · 32H₂O
Ferrierite Subgroup	Name used for unanalysed specimens that could be either ferrierite-K, ferrierite-Mg, ...
Ferrochiavennite	Ca_1-2Fe[(Si,Al,Be)₅Be₂O₁₃(OH)₂] · 2H₂O	Mon. 2/m : P2₁/b
Flörkeite	(K₃Ca₂Na)[Al₈Si₈O₃₂] · 12H₂O	Tric. 1 : P1
Garronite Subgroup
Gaultite	Na₄Zn₂Si₇O₁₈ · 5H₂O	Orth. mm2 : Fdd2
Gismondine Subgroup	Zeolite Group.
Gmelinite Subgroup	In 1997, gmelinite was split into Gmelinite-Ca, Gmelinite-Na and Gmelinite-K.
Gobbinsite	Na₅(Si₁₁Al₅)O₃₂ · 11H₂O	Orth. mmm(2/m2/m2/m) : Pnma
Goosecreekite	Ca[Al₂Si₆O₁₆] · 5H₂O	Mon. 2 : P2₁
Gottardiite	Na₃Mg₃Ca₅Al₁₉Si₁₁₇O₂₇₂ · 93H₂O	Orth. mmm(2/m2/m2/m) : Cmca
Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Hsianghualite	Ca₃Li₂(Be₃Si₃O₁₂)F₂	Iso. 23 : I2₁3
Kalborsite	K₆Al₄BSi₆O₂₀(OH)₄Cl	Tet. 42m : P42₁c
Kirchhoffite	Cs(BSi₂O₆)	Tet. 4/mmm(4/m2/m2/m) : I4₁/acd
Laumontite	CaAl₂Si₄O₁₂ · 4H₂O	Mon. 2/m : B2/m
Leucite	K(AlSi₂O₆)	Tet. 4/m : I4₁/a
Limousinite	BaCa[Be₄P₄O₁₆] · 6H₂O	Mon. 2/m : P2₁/b
Lithosite	K₆Al₄Si₈O₂₅ · 2H₂O	Mon.
Loomisite	Ba[Be₂P₂O₈] · H₂O	Mon. m
Lovdarite	K₂Na₆Be₄Si₁₄O₃₆ · 9H₂O	Orth. mm2
Maricopaite	Pb₇Ca₂(Si,Al)₄₈O₁₀₀ · 32H₂O	Orth.
Martinandresite	Ba₂(Al₄Si₁₂O₃₂) · 10H₂O	Orth. mmm(2/m2/m2/m) : Pmmn
Mazzite Subgroup	Zeolite Group.
Meierite	Ba₄₄Si₆₆Al₃₀O₁₉₂Cl₂₅(OH)₃₃	Iso. m3m(4/m32/m) : Im3m
Merlinoite	K₅Ca₂(Si₂₃Al₉)O₆₄ · 24H₂O	Orth. mmm(2/m2/m2/m) : Immm
Montesommaite	(K,Na)₉Al₉Si₂₃O₆₄ · 10H₂O	Orth. mm2 : Fdd2
Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O	Orth.
Mountainite	KNa₂Ca₂[Si₈O₁₉(OH)] · 6H₂O	Mon. 2/m : P2/b
Mutinaite	Na₃Ca₄Si₈₅Al₁₁O₁₉₂ · 60H₂O	Orth. mmm(2/m2/m2/m) : Pnma
Nabesite	Na₂BeSi₄O₁₀ · 4H₂O	Orth. 222 : P2₁2₁2₁
Natrolite Subgroup	A subgroup of the Zeolite Group.
Offretite	KCaMg(Si₁₃Al₅)O₃₆ · 15H₂O	Hex. 6m2 : P6m2
Pahasapaite	Li₈(Ca,Li,K)_10.5Be₂₄(PO₄)₂₄ · 38H₂O	Iso. 23 : I23
Parthéite	Ca₂(Si₄Al₄) O₁₅ (OH)₂ · 4H₂O	Mon. 2/m : B2/b
Paulingite Subgroup	Paulingite was originally described in 1960.
Phillipsite Subgroup	(Ca_0.5,K,Na,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] ^. 12H₂O
Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O	Iso. m3m(4/m32/m) : Ia3d
Roggianite	Ca₂Be(OH)₂Al₂Si₄O₁₃ · 2.5H₂O	Tet. 4/mmm(4/m2/m2/m) : I4/mcm
Rongibbsite	Pb₂(Si₄Al)O₁₁(OH)	Mon. 2/m : B2/m
Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Terranovaite	(Na,Ca)₈(Si₆₈Al₁₂)O₁₆₀ · 29H₂O	Orth.
Thomsonite Subgroup	The large majority of "thomsonite" is thomsonite-Ca.
Thornasite	Na₁₂Th⁴⁺₃(Si₈O₁₉)₄ · 18H₂O	Trig. 3m : R3m
Tschernichite	(Ca,Na₂)[Al₂Si₄O₁₂] · 4-8H₂O	Tet. 4/mmm(4/m2/m2/m) : P4/mmm
Tschörtnerite	Ca₄(Ca,Sr,K,Ba)₃Cu₃[Al₃Si₃O₁₂]₄(OH)₈ · nH₂O	Iso. m3m(4/m32/m) : Fm3m
'UM1996-38-SiO:AlCaHNa'	Na-Ca-Al-Si-O-H
'UM1999-33-SiO:AlHKNa'	K₇Na₅Al₁₂Si₂₀O₆₄ · 24H₂O
'UM2002-40-SiO:AlCaHKMgNa'	(Mg,Ca,Na,K)_7.5(Al_12.8Si_51.2)O₁₂₈ · 65H₂O	Tet. 422 : P4₁22
'Unnamed (Ca analogue of Merlinoite)'	(Ca,K,Na)₅(Ca,Ba)₂Al₉Si₂₃O₆₄ · 23H₂O ?
Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O	Mon. 2/m : B2/m
Weinebeneite	CaBe₃(PO₄)₂(OH)₂ · 4H₂O	Mon. m : Bb
Wenkite	(Ba,K)₄(Ca,Na)₆[(Si,Al)₂₀O₃₉(OH)₂](SO₄)₃ · 0.5H₂O	Hex. 6m2 : P62m
Wilancookite	(Ba₅Li₂◻)Ba₆Be₂₄P₂₄O₉₆ · 26H₂O	Iso. 23 : I23
Willhendersonite	KCa[Al₃Si₃O₁₂] · 5H₂O	Tric. 1 : P1
Yugawaralite	CaAl₂Si₆O₁₆ · 4H₂O	Mon. m : Pb

Common AssociatesHide

Associations Based on Photo Data:

6 photos of Perlialite associated with Nepheline	Na₃K(Al₄Si₄O₁₆)
5 photos of Perlialite associated with Microcline	K(AlSi₃O₈)
3 photos of Perlialite associated with Yuksporite	K₄(Ca,Na)₁₄(Sr,Ba)₂(◻,Mn,Fe)(Ti,Nb)₄(O,OH)₄(Si₆O₁₇)₂(Si₂O₇)₃(H₂O,OH)₃
3 photos of Perlialite associated with Pectolite	NaCa₂Si₃O₈(OH)
2 photos of Perlialite associated with Aegirine	NaFe³⁺Si₂O₆
1 photo of Perlialite associated with Sodalite	Na₄(Si₃Al₃)O₁₂Cl

Related Minerals - Strunz-mindat Grouping Hide

9.GC.	Gismondine-Sr	Sr₄(Si₈Al₈O₃₂) · 9H₂O	Orth. 222 : C222₁
9.GC.	Garronite-Na	Na₆(Al₆Si₁₀O₃₂) · 8_.5H₂O	Mon. 2
9.GC.05	'Gismondine-Ba'	Ba₂Al₄Si₄O₁₆ · 4-6H₂O
9.GC.05	Garronite-Ca	Na₂Ca₅Al₁₂Si₂₀O₆₄ · 27H₂O	Tet. 42m : I4m2
9.GC.05	Gismondine-Ca	CaAl₂Si₂O₈ · 4H₂O	Mon. 2/m : P2₁/b
9.GC.05	Gobbinsite	Na₅(Si₁₁Al₅)O₃₂ · 11H₂O	Orth. mmm(2/m2/m2/m) : Pnma
9.GC.05	Amicite	K₂Na₂Al₄Si₄O₁₆ · 5H₂O	Mon. 2
9.GC.10	Martinandresite	Ba₂(Al₄Si₁₂O₃₂) · 10H₂O	Orth. mmm(2/m2/m2/m) : Pmmn
9.GC.10	Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O	Mon. 2/m : P2₁/m
9.GC.10	Phillipsite-Ca	Ca₃(Si₁₀Al₆)O₃₂ · 12H₂O	Mon. 2/m : P2₁/m
9.GC.10	Phillipsite-K	K₆(Si₁₀Al₆)O₃₂ · 12H₂O	Mon. 2/m : P2₁/m
9.GC.10	Phillipsite-Na	(Na,K,Ca_0.5,Ba_0.5)_4-7[Al_4-7Si_12-9O₃₂] · 12H₂O	Mon. 2/m : P2₁/m
9.GC.10	Flörkeite	(K₃Ca₂Na)[Al₈Si₈O₃₂] · 12H₂O	Tric. 1 : P1
9.GC.15	Merlinoite	K₅Ca₂(Si₂₃Al₉)O₆₄ · 24H₂O	Orth. mmm(2/m2/m2/m) : Immm
9.GC.20	Mazzite-Na	Na₈[Al₄Si₁₄O₃₆]₂ · 30H₂O	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
9.GC.20	Mazzite-Mg	(Mg,K,Ca)₅(Si₂₆Al₁₀)O₇₂ · 28H₂O	Hex. 6/mmm(6/m2/m2/m) : P6₃/mmc
9.GC.30	Boggsite	Ca₈Na₃(Si,Al)₉₆O₁₉₂ · 70H₂O	Orth. mmm(2/m2/m2/m) : Imma
9.GC.35	Paulingite-Ca	(Ca,K,Na,Ba, ◻)₁₀ (Si, Al)₄₂O₈₄ · 34H₂O	Iso. m3m(4/m32/m)
9.GC.35	Paulingite-K	(K₂,Ca,Na₂,Ba)₅[Al₁₀Si₃₅O₉₀] · 45H₂O	Iso. m3m(4/m32/m)
9.GC.35	'Paulingite-Na'	(Na₂,K₂,Ca,Ba)₅[Al₁₀Si₃₅O₉₀] · 45H₂O	Iso.

RadioactivityHide

Radioactivity:

Element	% Content	Activity (Bq/kg)	Radiation Type
Uranium (U)	0.0000%	0	α, β, γ
Thorium (Th)	0.0000%	0	α, β, γ
Potassium (K)	12.4123%	3,848	β, γ

For comparison:

Banana: ~15 Bq per fruit
Granite: 1,000–3,000 Bq/kg
EU exemption limit: 10,000 Bq/kg

Note: Risk is shown relative to daily recommended maximum exposure to non-background radiation of 1000 µSv/year. Note that natural background radiation averages around 2400 µSv/year so in reality these risks are probably extremely overstated! With infrequent handling and safe storage natural radioactive minerals do not usually pose much risk.

Interactive Simulator:

Note: The mass selector refers to the mass of radioactive mineral present, not the full specimen, also be aware that the matrix may also be radioactive, possibly more radioactive than this mineral!

Mass of radioactive mineral:

Shielding material:

Activity: –

Distance	Dose rate	Risk
1 cm
10 cm
1 m

The external dose rate (D) from a radioactive mineral is estimated by summing the gamma radiation contributions from its Uranium, Thorium, and Potassium content, disregarding daughter-product which may have a significant effect in some cases (eg 'pitchblende'). This involves multiplying the activity (A, in Bq) of each element by its specific gamma ray constant (Γ), which accounts for its unique gamma emissions. The total unshielded dose at 1 cm is then scaled by the square of the distance (r, in cm) and multiplied by a shielding factor (μ_shield). This calculation provides a 'worst-case' or 'maximum risk' estimate because it assumes the sample is a point source and entirely neglects any self-shielding where radiation is absorbed within the mineral itself, meaning actual doses will typically be lower. The resulting dose rate (D) is expressed in microsieverts per hour (μSv/h).

D = ((A_U × Γ_U) + (A_Th × Γ_Th) + (A_K × Γ_K)) / r² × μ_shield

Other InformationHide

Health Risks:

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

Internet Links for PerlialiteHide

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

Mineral Dealers:

Buy from D. Joyce minerals

References for PerlialiteHide

Reference List:

Men'chikov, Y.P. (1984) Perlialite K9Na(Ca,Sr)Al12Si24O72·15H2O, a new potassian zeolite from the Khibina massif. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 113(5): 607-612.

Dunn, Pete J., Ferraiolo, James A., Fleischer, Michael, Gobel, Volker, Grice, Joel D., Langley, Richard H., Shigley, James E., Vanko, David A., Zilczer, Janet A. (1985) New mineral names. American Mineralogist, 70 (11-12) 1329-1335

Artioli, Gilberto, Kvick, Åke (1990) Synchrotron X-ray Rietveld study of perlialite, the natural counterpart of synthetic zeolite-L. European Journal of Mineralogy, 2 (6) 749-759 doi:10.1127/ejm/2/6/0749

Jambor, John L., Puziewicz, Jacek (1991) New Mineral Names. American Mineralogist, 76 (9-10) 1728-1735

Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, et al. (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6). 1571-1606

(2001) Perlialite. Handbook of Mineralogy. Mineralogical Society of America

Localities for PerlialiteHide

Showing 5 localities.

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.

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Locality ListHide

- 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.


Russia
Aldan Shield Chara and Tokko Rivers Confluence ⓘ Murunskii Massif	Konev et al. (1993)
Murmansk Oblast ⓘ Eveslogchorr Mt	[World of Stones 95:5-6
ⓘ Wadeite point	Pavel M. Kartashov (n.d.) +1 other reference
ⓘ Vuonnemiok River Valley (TL)	Men'chikov (1984) +2 other references
Yukspor Mountain ⓘ Loparskaya Valley (TL)	Men'chikov (1984) +2 other references

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Perlialite

About PerlialiteHide

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IMA Classification of PerlialiteHide

Classification of PerlialiteHide

Mineral SymbolsHide

Physical Properties of PerlialiteHide

Optical Data of PerlialiteHide

Chemistry of PerlialiteHide

Crystallography of PerlialiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

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Type Occurrence of PerlialiteHide

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Relationship of Perlialite to other SpeciesHide

Common AssociatesHide

Related Minerals - Strunz-mindat GroupingHide

RadioactivityHide

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Internet Links for PerlialiteHide

References for PerlialiteHide

Localities for PerlialiteHide

Locality ListHide

Related Minerals - Strunz-mindat Grouping Hide