Clinoptilolite-Na Mineral Data

Clinoptilolite-Na Mineral Data +

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General Clinoptilolite-Na Information

Chemical Formula:

(Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O)

Composition:

Molecular Weight = 2,703.72 gm

Potassium 1.89 % K 2.28 % K₂O

Barium 0.46 % Ba 0.51 % BaO

Sodium 3.21 % Na 4.33 % Na₂O

Calcium 0.90 % Ca 1.27 % CaO

Manganese 0.02 % Mn 0.03 % MnO

Aluminum 6.60 % Al 12.46 % Al₂O₃

Iron 0.39 % Fe 0.08 % FeO / 0.47 % Fe₂O₃

Silicon 30.32 % Si 64.87 % SiO₂

Hydrogen 1.52 % H 13.59 % H₂O

Oxygen 54.68 % O

______ ______

100.00 % 99.89 % = TOTAL OXIDE

Empirical Formula:

Na_3.78K_1.31Ca_0.61Ba_0.09Fe²⁺_0.03Mn²⁺_0.01Al_6.61Fe³⁺_0.16Si_29.19O₇₂·20.4(H₂O)

Environment:

Most commonly formed as a devitrification product of silicic volcanic glass from tuffs. Also occurs in cavities in rhyolites, andesites, and basalts.

IMA Status:

Approved IMA 1969 (Dana # Added)

Locality:

Barstow Formation, Owl Canyon, San Bernardino County, California, U.S.A. Link to MinDat.org Location Data.

Name Origin:

From the Greek klino - "oblique" ptylon - "feather" and lithos - "stone.." The Na-dominant member of the clinoptilolite series.

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Clinoptilolite-Na Crystallography

Axial Ratios:

a:b:c =0.9817:1:0.412

Cell Dimensions:

a = 17.627, b = 17.955, c = 7.399, Z = 1; beta = 116.29° V = 2,099.51 Den(Calc)= 2.14

Crystal System:

MonoclinicSpace Group: C 2/m, C 2, Cm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.971(1), 8.99(0.85), 3.91(0.7),

Crystal Structure:

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Armbruster T , Gunter M E , American Mineralogist , 76 (1991) p.1872-1883, Stepwise dehydration of heulandite-clinoptilolite from Succor Creek, Oregon,, U.S.A.: A single-crystal X-ray study at 100 K, sample name: natural

View Additional jPOWD Structure files for Clinoptilolite-Na
[1] [2] [3] [4]

Physical Properties of Clinoptilolite-Na

Cleavage:

[010] Perfect

Color:

White, Reddish white.

Density:

2.1 - 2.2, Average = 2.15

Diaphaniety:

Transparent to Translucent

Fracture:

Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.

Habit:

Crystalline - Fine - Occurs as well-formed fine sized crystals.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

3.5-4 - Copper Penny-Fluorite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Clinoptilolite-Na

Gladstone-Dale:

CI meas= -0.007 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.227,KPDmeas= 0.226,KC= 0.2245

Optical Data:

Biaxial (+/-), a=1.476-1.491, b=1.479-1.493, g=1.479-1.497, bire=0.0030-0.0060, 2V(Calc)=0-72, 2V(Meas)=31-48. Dispersion r > v to r < v strong.

Calculated Properties of Clinoptilolite-Na

Electron Density:

r_electron=2.17 gm/cc
note: r_{Clinoptilolite-Na}=2.15 gm/cc.

Fermion Index

Fermion Index = 0.01533
Boson Index = 0.98467

Photoelectric:

PE_{Clinoptilolite-Na}= 3.67 barns/electron
U=PE_{Clinoptilolite-Na} x r_electron= 7.96 barns/cc.

Radioactivity:

GRapi = 27.57 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Clinoptilolite-Na - barely detectable

Clinoptilolite-Na Classification

Dana Class:

77.1.4.2a (77)Tectosilicate Zeolite group

(77.1)true zeolites

(77.1.4)Heulandite and related species

77.1.4.1 Heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

77.1.4.1a Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

77.1.4.1b Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 2/m

77.1.4.1c Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

77.1.4.1d Heulandite-Ba! (Ba,Ca,K,Na,Sr)5Al9Si27O72·22(H2O) C 2/m 2/m

77.1.4.2 Clinoptilolite-K (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, C 2, Cm Mono

77.1.4.2a Clinoptilolite-Na ! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, C 2, Cm Mono

77.1.4.2b Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m 2/m

77.1.4.3 Stilbite-Ca NaCa4[Al8Si28O72]·n(H2O)(n=28-32) C 2/m 2/m

77.1.4.3a Stilbite-Na! Na3Ca3[Al8Si28O72]·n(H2O)(n=28-32) C 2/m 2/m

77.1.4.4 Stellerite CaAl2Si7O18·7(H2O) F mmm 2/m 2/m 2/m

77.1.4.5 Barrerite (Na,K,Ca)2Al2Si7O18·6(H2O) Amma or Ammm 2/m 2/m 2/m

Strunz Class:

VIII/J.23-18 VIII - Silicates

VIII/J - Tectosilicates (network), with zeolite-structure, Bladed Zeolites

VIII/J.23 - Zeolite group, Heulandite - Barium-brewsterite series

VIII/J.23-06 Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

VIII/J.23-08 Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 2/m

VIII/J.23-10 Heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

VIII/J.23-12 Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, Cm, C 2 Mono

VIII/J.23-18 Clinoptilolite-Na (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, C 2, Cm Mono

VIII/J.23-20 Clinoptilolite-K (Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m, C 2, Cm Mono

VIII/J.23-22 Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36·12(H2O) C 2/m 2/m

VIII/J.23-26 Stilbite-Na! Na3Ca3[Al8Si28O72]·n(H2O)(n=28-32) C 2/m 2/m

VIII/J.23-30 Stilbite-Ca NaCa4[Al8Si28O72]·n(H2O)(n=28-32) C 2/m 2/m

VIII/J.23-40 Barrerite (Na,K,Ca)2Al2Si7O18·6(H2O) Amma or Ammm 2/m 2/m 2/m

VIII/J.23-50 Stellerite CaAl2Si7O18·7(H2O) F mmm 2/m 2/m 2/m

VIII/J.23-60 Goosecreekite CaAl2Si6O16·5(H2O) P 2₁ 2

VIII/J.23-70 Epistilbite CaAl2Si6O16·5(H2O) C1 1

VIII/J.23-80 Brewsterite-Sr (Sr,Ba)Al4Si12O32·10(H2O) P 2₁/m 2/m

VIII/J.23-90 Brewsterite-Ba! (Ba,Sr)Al2Si6O16·5(H2O) P 2₁/m,P 2₁ Mono

Other Clinoptilolite-Na Information

References:

NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Clinoptilolite-Na :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Clinoptilolite-Na Specimen Label here :

Clinoptilolite-Na

(Na,K,Ca)2-3Al3(Al,Si)2Si13O36·12(H2O)
Dana No: 77.1.4.2a Strunz No: VIII/J.23-18
Locality:

Notes: