Natron Mineral Data

Natron Mineral Data +

[Newest Minerals] [Minerals for Sale] [Tsumeb Mine] [Mineral Auctions] [Mineral Gallery]
The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame
Visa and Mastercard are Welcome

General Natron Information

Chemical Formula:

Na2CO3·10(H2O)

Composition:

Molecular Weight = 286.14 gm

Sodium 16.07 % Na 21.66 % Na₂O

Hydrogen 7.05 % H 62.96 % H₂O

Carbon 4.20 % C 15.38 % CO₂

Oxygen 72.69 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₂(CO₃)·10(H₂O)

Environment:

Saline lake beds in arid environments.

IMA Status:

Valid Species (Pre-IMA) Prehistoric

Locality:

Ragtown, Nevada, USA. Link to MinDat.org Location Data.

Name Origin:

From the Latin for "soda."

Synonym:

ICSD 16033

PDF 15-800

Soda

Natron Image

Images:

Natron

Comments: Opaque white powdery massive natron.
Location: Atlin, British Columbia, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Natron Crystallography

Axial Ratios:

a:b:c =1.4214:1:1.489

Cell Dimensions:

a = 12.83, b = 9.026, c = 13.44, Z = 4; beta = 123° V = 1,305.31 Den(Calc)= 1.46

Crystal System:

Monoclinic - DomaticH-M Symbol (m) Space Group: Cc

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

By Intensity(I/I_o): 3.036(1), 3.015(0.7), 2.894(0.6),5.37(0.5),

Physical Properties of Natron

Cleavage:

[001] Distinct, [010] Imperfect

Color:

White, Gray, Colorless, Yellow.

Density:

1.42 - 1.47, Average = 1.44

Diaphaniety:

Transparent to Translucent

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

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

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

1 - Talc

Luminescence:

Phosphorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Natron

Gladstone-Dale:

CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.29,KPDmeas= 0.293,KC= 0.2877

Optical Data:

Biaxial (-), a=1.405, b=1.425, g=1.44, bire=0.0350, 2V(Calc)=80, 2V(Meas)=71. Dispersion r > v.

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Natron

Electron Density:

r_electron=1.55 gm/cc
note: r_Natron=1.46 gm/cc.

Fermion Index

Fermion Index = 0.00082
Boson Index = 0.99918

Photoelectric:

PE_Natron= 0.51 barns/electron
U=PE_Natron x r_electron= 0.80 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Natron is Not Radioactive

Natron Classification

Dana Class:

15.1.2.1 (15)Hydrated Carbonates

(15.1)where A+ (XO3) · x(H2O)

(15.1.2)Dana Group

15.1.2.1 Natron Na2CO3·10(H2O) Cc m

Strunz Class:

V/D.02-20 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 Natron Information

References:

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

Search for Natron using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Natron :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Natron Mineral Data :

Ask about Natron here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Natron

Na2CO3·10(H2O)
Dana No: 15.1.2.1 Strunz No: V/D.02-20
Locality:

Notes: