Clinoptilolite-Na Mineral Data

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.

Name Pronunciation:

Clinoptilolite-Na + Pronunciation

Clinoptilolite-Na Image

Images:

Clinoptilolite-Na

Comments: Transparent, brown clinoptilolite-Na crystals in cavities.
Location: Richardson Ranch, Madras, Jefferson Co., Oregon, USA. Scale: Specimen Size 1.5x1.5 cm.
© Diederik Visser

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

Diaphaneity:

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= -0.006 (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= 0.2246
Ncalc = 1.47 - 1.49

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:

Bulk Density (Electron Density)=2.17 gm/cc
note: Specific Gravity of Clinoptilolite-Na =2.15 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

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)
Concentration of Clinoptilolite-Na per GRapi unit = 3.63 (%)

Estimated Radioactivity from Clinoptilolite-Na - barely detectable

Clinoptilolite-Na Classification

Dana Class:

77.01.04.02a (77)Tectosilicate Zeolite group

(77.01)true zeolites

(77.01.04)Heulandite and related species

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

77.01.04.01a Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono

77.01.04.01b Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 2/m

77.01.04.01c Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono

77.01.04.01d Heulandite-Ba! (Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O) C 2/m 2/m

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

77.01.04.02a Clinoptilolite-Na! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono

77.01.04.02b Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m 2/m

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

77.01.04.03a Stilbite-Na! Na3Ca3[Al8Si28O72]•n(H2O)(n=28-32) C 2/m 2/m

77.01.04.04 Stellerite CaAl2Si7O18•7(H2O) F mmm 2/m 2/m 2/m

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

Strunz Class:

09.GE.05 09 - SILICATES (Germanates)

09.G - Tektosilicates with Zeolitic H2O

09.GE -Chains of T10O20 Tetrahedra

09.GE.05 Clinoptilolite-Na! (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono

09.GE.05 Clinoptilolite-K (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, C 2, Cm Mono

09.GE.05 Clinoptilolite-Ca! (Ca,Na,K)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m 2/m

09.GE.05 Heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono

09.GE.05 Heulandite-K! (K,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 2/m

09.GE.05 Heulandite-Na! (Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono

09.GE.05 Heulandite-Sr! (Sr,Na,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O) C 2/m, Cm, C 2 Mono

09.GE.05 Heulandite-Ba! (Ba,Ca,K,Na,Sr)5Al9Si27O72•22(H2O) C 2/m 2/m

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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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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: 77.01.04.02a Strunz No: 09.GE.05
Locality:

Notes: