Suolunite Mineral Data

Suolunite Mineral Data +

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General Suolunite Information

Chemical Formula:

Ca2Si2O5(OH)2·(H2O)

Composition:

Molecular Weight = 268.35 gm

Calcium 29.87 % Ca 41.79 % CaO

Silicon 20.93 % Si 44.78 % SiO₂

Hydrogen 1.50 % H 13.43 % H₂O

Oxygen 47.70 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ca₂Si₂O₅(OH)₂·(H₂O)

IMA Status:

Approved IMA 1965

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 28308

PDF 26-307

Suolunite Image

Images:

Suolunite

Comments: Translucent massive suolunite.
Location: Oman. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Suolunite Crystallography

Axial Ratios:

a:b:c =0.5668:1:0.3091

Cell Dimensions:

a = 11.15, b = 19.67, c = 6.08, Z = 8; V = 1,333.47 Den(Calc)= 2.67

Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: F dd2

Physical Properties of Suolunite

Cleavage:

None

Color:

Colorless, Honey yellow, White.

Density:

2.683

Hardness:

3.5 - Copper Penny

Luster:

Vitreous - Resinous

Streak:

white

Optical Properties of Suolunite

Gladstone-Dale:

CI meas= -0.016 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2313,KPDmeas= 0.2302,KC= 0.2266

Optical Data:

Biaxial (-), a=1.61, b=1.62, g=1.623, bire=0.0130, 2V(Calc)=56, 2V(Meas)=30-50.

Calculated Properties of Suolunite

Electron Density:

r_electron=2.72 gm/cc
note: r_Suolunite=2.68 gm/cc.

Fermion Index

Fermion Index = 0.0104
Boson Index = 0.9896

Photoelectric:

PE_Suolunite= 4.45 barns/electron
U=PE_Suolunite x r_electron= 12.09 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Suolunite is Not Radioactive

Suolunite Classification

Dana Class:

56.2.4.14 (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O

(56.2)with cations in [4] and/or >[4] coordination

(56.2.4)Cuspidine - Wohlerite group

56.2.4.1 Baghdadite Ca3(Zr,Ti)Si2O9 P 2₁/a 2/m

56.2.4.2 Burpalite Na2CaZrSi2O7F2 P 2₁/a 2/m

56.2.4.3 Cuspidine Ca4Si2O7(F,OH)2 P 2₁/c 2/m

56.2.4.4 Lavenite (Na,Ca)2(Mn,Fe)(Zr,Ti,Nb)Si2O7(O,OH,F) P 2₁/a 2/m

56.2.4.5 Wohlerite NaCa2(Zr,Nb)Si2O7(O,OH,F)2 P 2₁/m 2/m

56.2.4.6 Niocalite Ca14Nb2(Si2O7)4O6F2 Pa m

56.2.4.7 Hiortdahlite (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2 P1 1

56.2.4.8 Rosenbuschite (Ca,Na)3(Zr,Ti)Si2O8F P1 1

56.2.4.9 Hainite Na4Ca8(Ti,Zr,Mn,Fe)3Si8O28F8 P1 1

56.2.4.10 Janhaugite (Na,Ca)3(Mn,Fe)3(Ti,Zr,Nb)2Si4O15(OH,F,O)3 P 2₁/n 2/m

56.2.4.11 Jennite Ca9Si6O18(OH)6·8H2O P1 1

56.2.4.12 Komarovite (Ca,Mn)2(Nb,Ti)2Si2O7(O,F)2·3.5(H2O) Unk Ortho

56.2.4.13 Na-komarovite? Na6CaNb6[Si4O12F2·4(H2O) C mmm 2/m 2/m 2/m

56.2.4.14 Suolunite Ca2Si2O5(OH)2·(H2O) F dd2 mm2

56.2.4.15 Mongolite Ca4Nb6Si5O24(OH)10·5(H2O) Unk Tetra

56.2.4.16 Kristiansenite! Ca2ScSn(Si2O7)(Si2O6OH) C1 1

56.2.4.17 Kochite! Na2(Na,Ca)4Ca4(Mn,Ca)2Zr2Ti2(Si2O7)4(O,F)4F4 P1 1

Strunz Class:

VIII/C.09-40 VIII - Silicates

VIII/C - Sorosilicates with [Si2O7]6-, with anions unfamiliar to tetraheders [O,OH,F]

VIII/C.09 - Tilleyite - Foshallasite series

VIII/C.09-20 Tilleyite Ca5Si2O7(CO3)2 P 2₁/a 2/m

VIII/C.09-30 Jaffeite Ca4(Si3O7)(OH)6 P 3 3

VIII/C.09-40 Suolunite Ca2Si2O5(OH)2·(H2O) F dd2 mm2

VIII/C.09-50 Killalaite 2Ca3Si2O7·(H2O) P 2₁/m 2/m

VIII/C.09-60 Foshallasite Ca3Si2O7·3(H2O) Mono

Other Suolunite Information

References:

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

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Suolunite

Ca2Si2O5(OH)2·(H2O)
Dana No: 56.2.4.14 Strunz No: VIII/C.09-40
Locality:

Notes: