Baylissite Mineral Data

Baylissite Mineral Data +

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Baylissite Information

Chemical Formula:

K2Mg(CO3)2·4(H2O)

Composition:

Molecular Weight = 294.58 gm

Potassium 26.55 % K 31.98 % K₂O

Magnesium 8.25 % Mg 13.68 % MgO

Hydrogen 2.74 % H 24.46 % H₂O

Carbon 8.15 % C 29.88 % CO₂

Oxygen 54.31 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

K₂Mg(CO₃)₂·4(H₂O)

IMA Status:

Approved IMA 1976

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 200006

PDF 29-1017

Search for Baylissite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Baylissite Crystallography

Axial Ratios:

a:b:c =1.9823:1:1.0993

Cell Dimensions:

a = 12.37, b = 6.24, c = 6.86, Z = 2; beta = 114.5° V = 481.84 Den(Calc)= 2.03

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

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

By Intensity(I/I_o): 3.01(1), 2.98(0.9), 6.31(0.8),

Physical Properties of Baylissite

Color:

Colorless.

Diaphaniety:

Transparent

Streak:

white

Optical Properties of Baylissite

Gladstone-Dale:

CI calc= -0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2438,KC= 0.2363

Optical Data:

Biaxial (-), a=1.465, b=1.485, g=1.535, bire=0.0700, 2V(Calc)=68, 2V(Meas)=64.

Calculated Properties of Baylissite

Electron Density:

r_electron=2.07 gm/cc
note: r_Baylissite=2.03 gm/cc.

Fermion Index

Fermion Index = 0.00944
Boson Index = 0.99056

Photoelectric:

PE_Baylissite= 2.95 barns/electron
U=PE_Baylissite x r_electron= 6.09 barns/cc.

Radioactivity:

GRapi = 390.05 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Baylissite - barely detectable

Baylissite Classification

Dana Class:

15.2.4.1 (15)Hydrated Carbonates

(15.2)where A+m B++n (XO3)p · x(H2O), (m+n):p > 1:1

(15.2.4)Dana Group

15.2.4.1 Baylissite K2Mg(CO3)2·4(H2O) P 2₁/a 2/m

Strunz Class:

V/D.02-40 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 Baylissite Information

References:

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

See Also:

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

Search for Baylissite using:

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

Visit our Advertisers for Baylissite :
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 Baylissite Mineral Data :

Ask about Baylissite 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 Baylissite Specimen Label here :

Baylissite

K2Mg(CO3)2·4(H2O)
Dana No: 15.2.4.1 Strunz No: V/D.02-40
Locality:

Notes: