Peisleyite Mineral Data
General Peisleyite Information
Chemical Formula:
Na3Al16(SO4)2(PO4)10(OH)17•20(H2O)
Composition:
Molecular Weight = 2,291.95 gm
Sodium 3.01 % Na 4.06 % Na2 O
Aluminum 18.84 % Al 35.59 % Al2 O3
Phosphorus 13.51 % P 30.97 % P2 O5
Hydrogen 2.51 % H 22.40 % H2 O
Sulfur 2.80 % S 6.99 % SO3
Oxygen 59.34 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Na3 Al16 (SO4 )2 (PO4 )10 (OH)17 •20(H2 O)
IMA Status:
Approved IMA 1982
Locality:
Tom's quarry, near Kapunda, SA, Australia. Link to MinDat.org Location Data.
Name Origin:
Named for Vincent Peisley (1941-), Australian mineral collector who found the mineral.
Name Pronunciation:
Peisleyite + Pronunciation
Peisleyite Image
Images:
Peisleyite Crystallography
Axial Ratios:
a:b:c =1.0546:1:1.8335
Cell Dimensions:
a = 13.31, b = 12.62, c = 23.14, Z = 2; beta = 110° V = 3,652.47 Den(Calc)= 2.08
Crystal System:
Monoclinic Space Group: Unk
X Ray Diffraction:
By Intensity(I/Io ): 12.63(1), 5.41(0.35), 7.82(0.35),
Physical Properties of Peisleyite
Color:
White.
Density:
2.11
Habit:
Compact - Occurs as a compact mass.
Hardness:
3 - Calcite
Luster:
Earthy (Dull)
Streak:
white
Optical Properties of Peisleyite
Gladstone-Dale:
CI meas = -0.067 (Fair) - where the CI = (1-KPDmeas /KC ) CI calc = -0.082 (Poor) - where the CI = (1-KPDcalc /KC )
KPDcalc = 0.2452,KPDmeas = 0.2417,KC = 0.2266 Ncalc = 1.47 - 1.48
Optical Data:
Biaxial (?), b=1.51
Calculated Properties of Peisleyite
Electron Density:
Bulk Density (Electron Density)=2.14 gm/cc note: Specific Gravity of Peisleyite =2.11 gm/cc.
Fermion Index:
Fermion Index = 0.000498434 Boson Index = 0.999501566
Photoelectric:
PEPeisleyite = 1.46 barns/electronU=PEPeisleyite x r Electron Density= 3.13 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Peisleyite is Not Radioactive
Peisleyite Classification
Dana Class:
43.05.15.01 (43) Compound Phosphates, etc.
(43.05) (Hydrated Compound Anions With Hydroxyl or Halogen)
(43.05.15) Dana Group
43.05.15.01 Peisleyite Na3Al16(SO4)2(PO4)10(OH)17•20(H2O) Unk Mono
Strunz Class:
08.DO.15 08 - PHOSPHATES, ARSENATES, VANADATES
08.D - Phosphates, etc
08.DO -With CO3, SO4, SiO4
08.DO.15 Peisleyite Na3Al16(SO4)2(PO4)10(OH)17•20(H2O) Unk Mono
Other Peisleyite Information
References:
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Peisleyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Peisleyite
Na3Al16(SO4)2(PO4)10(OH)17•20(H2O)
Dana No: 43.05.15.01 Strunz No: 08.DO.15
Locality:
Notes:
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