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Sanderite Mineral Data
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General Sanderite Information
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 Chemical Formula: |
MgSO4•2(H2O) |
| Composition: |
Molecular Weight = 156.40 gm |
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Magnesium 15.54 % Mg 25.77 % MgO |
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Hydrogen 2.58 % H 23.04 % H2O |
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Sulfur 20.50 % S 51.19 % SO3 |
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Oxygen 61.38 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Mg(SO4)•2(H2O) |
| Environment: |
Structure analyzed from synthetic material. |
| IMA Status: |
Valid Species (Pre-IMA) 1952 |
| Locality: |
Efflorescences on kieserite at the Hansa I shaft, Empelde, and the Niedersachsen shaft, near Wathlingen, Austria. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Bruno Sander (1884-1979), Austrian geologist, Alte Universitat, Innsbruck, Austria. |
| Name Pronunciation: |
Sanderite + Pronunciation  |
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Sanderite Crystallography
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| Axial Ratios: |
a:b:c =1.0477:1:1.4655 |
| Cell Dimensions: |
a = 8.8932, b = 8.4881, c = 12.4401, Z = 8; V = 939.06 Den(Calc)= 2.21 |
| Crystal System: |
Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 212121 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.1(1), 4.25(0.9), 4.42(0.8), |
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Physical Properties of Sanderite
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| Color: |
White. |
| Density: |
2.37 |
| Diaphaneity: |
Transparent |
| Habit: |
Efflorescences - Crystals covering matrix, generally produced from transpiro-evaporation. |
| Luster: |
Vitreous (Glassy) |
| Streak: |
white |
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Optical Properties of Sanderite
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| Optical Data: |
Biaxial (?) |
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NCalc= 1.49 - from Gladstone-Dale relationship (KC = 0.2205) where Ncalc=Dcalc*KC+1
NCalc= 1.52 - from Gladstone-Dale relationship (KC = 0.2205) where Ncalc=Dmeas*KC+1
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Calculated Properties of Sanderite
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| Electron Density: |
Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Sanderite =2.21 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PESanderite = 1.64 barns/electron
U=PESanderite x rElectron Density= 3.70 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sanderite is Not Radioactive |
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Sanderite Classification
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| Dana Class: |
29.06.04.01 (29)Hydrated Acid and Sulfates |
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(29.06)where A XO4 � x(H2O) |
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(29.06.04)Dana Group |
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29.06.04.01 Sanderite MgSO4•2(H2O) P 212121 2 2 2 |
| Strunz Class: |
07.CB.07 07 - SULFATES (SELENATES, TELLURATES) |
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07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O |
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07.CB -With only medium-sized cations |
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07.CB.07 Sanderite MgSO4•2(H2O) P 212121 2 2 2 |
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Other Sanderite Information
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| References: |
PHYS. PROP.(Dana8, AmMin, v94:622) |
| See Also: |
Links to other databases for Sanderite :
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 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Print or Cut-and-Paste your Sanderite Specimen Label here :
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Sanderite
MgSO4•2(H2O)
Dana No: 29.06.04.01 Strunz No: 07.CB.07
Locality:
Notes:
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