Thermonatrite Mineral Data

Thermonatrite Mineral Data +

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General Thermonatrite Information

Chemical Formula:

Na2CO3·(H2O)

Composition:

Molecular Weight = 124.00 gm

Sodium 37.08 % Na 49.98 % Na₂O

Hydrogen 1.63 % H 14.53 % H₂O

Carbon 9.69 % C 35.49 % CO₂

Oxygen 51.61 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₂(CO₃)·(H₂O)

Environment:

Dry lakes in arid regions.

IMA Status:

Valid Species (Pre-IMA) 1845

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 6293

PDF 8-448

Thermonatrite Image

Images:

Click Here for Larger Thermonatrite Image

Thermonatrite Nacaphite

Comments: Sparse pale yellow-brown microcrystal and crystalline nacaphite with white thermonatrite on a dark matrix.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Images:

Thermonatrite

Comments: Granular thermonatrite.
Location: Eruption of 1859, Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermonatrite Crystallography

Axial Ratios:

a:b:c =2.0422:1:1.2324

Cell Dimensions:

a = 10.72, b = 5.249, c = 6.469, Z = 4; V = 364.01 Den(Calc)= 2.26

Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P ca2₁

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

By Intensity(I/I_o): 2.768(1), 2.372(0.6), 2.753(0.55),

Physical Properties of Thermonatrite

Cleavage:

[100] Indistinct

Color:

Colorless, Grayish yellow, Grayish, Yellowish, White.

Density:

2.255

Diaphaniety:

Transparent to translucent

Fracture:

Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Hardness:

1 - Talc

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Thermonatrite

Gladstone-Dale:

CI meas= 0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2139,KPDmeas= 0.2143,KC= 0.2192

Optical Data:

Biaxial (-), a=1.42, b=1.506, g=1.524, bire=0.1040, 2V(Calc)=46, 2V(Meas)=48.

Calculated Properties of Thermonatrite

Electron Density:

r_electron=2.25 gm/cc
note: r_{Thermonatrite}=2.26 gm/cc.

Fermion Index

Fermion Index = 0.00131
Boson Index = 0.99869

Photoelectric:

PE_{Thermonatrite}= 0.74 barns/electron
U=PE_{Thermonatrite} x r_electron= 1.68 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Thermonatrite is Not Radioactive

Thermonatrite Classification

Dana Class:

15.1.1.1 (15)Hydrated Carbonates

(15.1)where A+ (XO3) · x(H2O)

(15.1.1)Dana Group

15.1.1.1 Thermonatrite Na2CO3·(H2O) P ca2₁ mm2

Strunz Class:

V/D.02-10 V - Nitrates, Carbonates and Borates

V/D - Water-bearing carbonates without unfamiliar anions

V/D.02 - Thermonatrite - Chalconatronite series

V/D.02-10 Thermonatrite Na2CO3·(H2O) P ca2₁ mm2

V/D.02-20 Natron Na2CO3·10(H2O) Cc m

V/D.02-30 Trona Na3(CO3)(HCO3)·2(H2O) I2/a 2/m

V/D.02-40 Baylissite K2Mg(CO3)2·4(H2O) P 2₁/a 2/m

V/D.02-50 Pirssonite Na2Ca(CO3)2·2(H2O) F dd2 mm2

V/D.02-60 Gaylussite Na2Ca(CO3)2·5(H2O) I2/a 2/m

V/D.02-70 Chalconatronite Na2Cu(CO3)2·3(H2O) P 2₁/n 2/m

Other Thermonatrite Information

References:

NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)

See Also:

Links to other databases for Thermonatrite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 -Athena 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 -École des Mines de Paris

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Thermonatrite

Na2CO3·(H2O)
Dana No: 15.1.1.1 Strunz No: V/D.02-10
Locality:

Notes: