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Baylissite

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Formula:
K2Mg(CO3)2 · 4H2O
System:
Monoclinic
Colour:
Colourless
Name:
Named after N.S. Bayliss.
This page provides mineralogical data about Baylissite.

Classification of Baylissite

Approved
5.CB.45

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
B : With large cations (alkali and alkali-earth carbonates)
15.2.4.1

15 : HYDRATED NORMAL CARBONATES
2 : AmBn(XO3)p·xH2O, with (m+n):p > 1:1
11.1.15

11 : Carbonates
1 : Carbonates of the alkali metals and ammonium
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First Recorded Occurrence of Baylissite

Year of Discovery:
1976

Physical Properties of Baylissite

Colour:
Colourless

Crystallography of Baylissite

Crystal System:
Monoclinic
Cell Parameters:
a = 12.37Å, b = 6.24Å, c = 6.86Å
β = 114.5°
Ratio:
a:b:c = 1.982 : 1 : 1.099
Unit Cell Volume:
V 481.84 ų (Calculated from Unit Cell)

Optical Data of Baylissite

Type:
Biaxial (-)
RI values:
nα = 1.465 nβ = 1.485 nγ = 1.535
2V:
Measured: 64° , Calculated: 68°
Max Birefringence:
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v strong

Chemical Properties of Baylissite

Formula:
K2Mg(CO3)2 · 4H2O
Essential elements:
All elements listed in formula:

Relationship of Baylissite to other Species

5.CB.05ThermonatriteNa2CO3 · H2O
5.CB.10NatronNa2CO3 · 10H2O
5.CB.15TronaNa3H(CO3)2 · 2H2O
5.CB.20MonohydrocalciteCaCO3 · H2O
5.CB.25IkaiteCaCO3 · 6H2O
5.CB.30PirssoniteNa2Ca(CO3)2 · 2H2O
5.CB.35GaylussiteNa2Ca(CO3)2 · 5H2O
5.CB.40ChalconatroniteNa2Cu(CO3)2 · 3H2O
5.CB.50TuliokiteNa6BaTh(CO3)6 · 6H2O
11.1.1ZabuyeliteLi2CO3
11.1.2NatriteNa2CO3
11.1.3NahcoliteNaHCO3
11.1.4WegscheideriteNa5H3(CO3)4
11.1.5ThermonatriteNa2CO3 · H2O
11.1.6TronaNa3H(CO3)2 · 2H2O
11.1.7NatronNa2CO3 · 10H2O
11.1.8KaliciniteKHCO3
11.1.9ShortiteNa2Ca2(CO3)3
11.1.10NyerereiteNa2Ca(CO3)2
11.1.11Natrofairchildite
11.1.12ZemkoriteNa2Ca(CO3)2
11.1.13PirssoniteNa2Ca(CO3)2 · 2H2O
11.1.14GaylussiteNa2Ca(CO3)2 · 5H2O
11.1.16FairchilditeK2Ca(CO3)2
11.1.17BütschliiteK2Ca(CO3)2
11.1.18Teschemacherite(NH4)HCO3

Other Names for Baylissite

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Baylissite

Reference List:
Schweizerische mineralogische und petrographische Mitteilungen (1976): 56: 187-194.

Internet Links for Baylissite

Localities for Baylissite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Switzerland
 
  • Bern
    • Hasli Valley
      • Grimsel area
        • Gerstenegg
Schweiz.Min.Petr.Mitt.(1976) 56, 187-194
Mineral and/or Locality  
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