Sveite Mineral Data

General Sveite Information

Chemical Formula:

KAl7(NO3)4Cl2(OH)16•8(H2O)

Composition:

Molecular Weight = 963.13 gm

Potassium 4.06 % K 4.89 % K₂O

Aluminum 19.61 % Al 37.05 % Al₂O₃

Hydrogen 3.35 % H 29.93 % H₂O

Nitrogen 5.82 % N 22.43 % N₂O₅

Chlorine 7.36 % Cl 7.36 % Cl

- % Cl -1.66 % -O=Cl₂

Oxygen 59.80 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

KAl₇(NO₃)₄Cl₂(OH)₁₆•8(H₂O)

Environment:

Cave wall efflorescences.

IMA Status:

Approved IMA 1980

Locality:

Autan Cave, Amazonas Territory, Venezuela. Link to MinDat.org Location Data.

Name Origin:

Named for Sociedad Venezolana de Espeleolgia.

Name Pronunciation:

Sveite

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Sveite Crystallography

Axial Ratios:

a:b:c =0.8351:1:2.355

Cell Dimensions:

a = 10.89, b = 13.04, c = 30.71, Z = 6; beta = 92.167° V = 4,357.87 Den(Calc)= 2.20

Crystal System:

Monoclinic

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

By Intensity(I/I_o): 10.2(1), 2.443(0.55), 3.692(0.4),

Physical Properties of Sveite

Cleavage:

{001} Perfect

Color:

White.

Density:

Habit:

Aggregates - Made of numerous individual crystals or clusters.

Habit:

Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation.

Habit:

Flakes - Flat, thin crystals or aggregates.

Hardness:

2 - Gypsum

Streak:

white

Optical Properties of Sveite

Gladstone-Dale:

CI meas= 0.034 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.122 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2332,KPDmeas= 0.2565,KC= 0.2656
Ncalc = 1.53 - 1.58

Optical Data:

Biaxial (+), a=1.501, b=1.503, g=1.535, bire=0.0340, 2V(Calc)=30, 2V(Meas)=small.

Calculated Properties of Sveite

Electron Density:

Bulk Density (Electron Density)=2.04 gm/cc
note: Specific Gravity of Sveite =2.00 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_Sveite= 1.60 barns/electron
U=PE_Sveite x r_electron= 3.27 barns/cc.

Radioactivity:

GRapi = 59.84 (Gamma Ray American Petroleum Institute Units)
Concentration of Sveite per GRapi unit = 1.67 (%)

Estimated Radioactivity from Sveite - barely detectable

Sveite Classification

Dana Class:

19.01.03.01 (19)Nitrates - Hydroxyl or Halogen

(19.01)with miscellaneous formulae

(19.01.03)Dana Group

19.01.03.01 Sveite KAl7(NO3)4Cl2(OH)16•8(H2O) Mono

Strunz Class:

05.ND.20 05 - CARBONATES (NITRATES)

05.N - NITRATES

05.ND -With OH (etc.) and H2O

05.ND.20 Sveite KAl7(NO3)4Cl2(OH)16•8(H2O) Mono

Other Sveite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Sveite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Sveite Specimen Label here :

Sveite

KAl7(NO3)4Cl2(OH)16•8(H2O)
Dana No: 19.01.03.01 Strunz No: 05.ND.20
Locality:

Notes: