Berndtite Mineral Data + 
|
[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery]
Serving the mineral collector and educator community since 1970
Over 900,000 mineral specimens in stock
New minerals acquired weekly - Wright's Rock Shop
- 2.12.14.1 Melonite NiTe2 P 3m1 3 2/m
- 2.12.14.2 Kitkaite NiTeSe P 3m1 3 2/m
- 2.12.14.3 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m
- 2.12.14.4 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m
- 2.12.14.5 Berndtite SnS2 P 3m1 3 2/m
- 2.12.14.6 Shuangfengite IrTe2 P 3m1 3 2/m
- 2.12.14.7 Sudovikovite! PtSe2 P 3m1 3 2/m
- II/D.28-10 Berndtite SnS2 P 3m1 3 2/m
- II/D.28-20 Kitkaite NiTeSe P 3m1 3 2/m
- II/D.28-30 Melonite NiTe2 P 3m1 3 2/m
- II/D.28-35 Sudovikovite! PtSe2 P 3m1 3 2/m
- II/D.28-40 Merenskyite (Pd,Pt)(Te,Bi)2 P 3m1 3m
- II/D.28-45 Shuangfengite IrTe2 P 3m1 3 2/m
- II/D.28-50 Moncheite (Pt,Pd)(Te,Bi)2 P 3m1 3 2/m
- II/D.28-60 Verbeekite! PdSe2 C 2, Cm, or C 2/m Mono
General Berndtite Information |
|||
 Chemical Formula: |
SnS2 | ||
| Composition: |
Molecular Weight = 182.84 gm | ||
| Tin 64.92 % Sn | |||
| Sulfur 35.08 % S | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
SnS2 | ||
| Environment: |
Secondary mineral in tin sulfide veins and in a high temperature deposit, hydrothermally altered. | ||
| IMA Status: |
Approved IMA 1964 | ||
| Locality: |
Cerro de Potosi, Bolivia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Fritz Berndt, German mineralogist. | ||
Berndtite Image | |||
|
Images:
|
|
||
Berndtite Crystallography |
|||
| Axial Ratios: |
a:c = 1:1.61253 | ||
| Cell Dimensions: |
a = 3.639, c = 5.868, Z = 1; V = 67.30 Den(Calc)= 4.51 | ||
| Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.78(1), 2.14(0.5), 5.9(0.5), | ||
|
Crystal Structure:
Mouse |
| ||
Physical Properties of Berndtite |
|||
| Cleavage: |
[0001] Good | ||
| Color: |
Grayish yellow, Yellow brown. | ||
| Density: |
4.5 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Habit: |
Pseudo Hexagonal - Crystals show a hexagonal outline. | ||
| Habit: |
Tabular - Form dimensions are thin in one direction. | ||
| Hardness: |
1-2 - Between Talc and Gypsum | ||
| Luster: |
Adamantine | ||
| Streak: |
golden yellow | ||
Optical Properties of Berndtite |
|||
| Optical Data: |
Uniaxial (-), e=1.705, w=1.93, bire=0.2250. | ||
Calculated Properties of Berndtite |
|||
| Electron Density: |
relectron=4.05 gm/cc |
||
| Fermion Index |
Fermion Index = 0.11053 Boson Index = 0.88947 |
||
| Photoelectric: |
PEBerndtite = 201.35 barns/electron |
||
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Berndtite is Not Radioactive |
||
Berndtite Classification |
|||
| Dana Class: |
2.12.14.5 (2)Sulfides - Including Selenides and Tellurides | ||
| (2.12)where Am Bn Xp, with (m+n):p=1:2 | |||
| (2.12.14)Melonite Group (Trigonal: P3¯m1) AX2 type | |||
| Strunz Class: |
II/D.28-10 II - Sulfides and sulphosalts | ||
| II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold | |||
| II/D.28 - Melonite group, Berntdtite - Moncheite series | |||
Other Berndtite Information |
|||
| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p1436,1990) OPTIC PROP.(Dana8) | ||
| See Also: |
Links to other databases for Berndtite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - WWW-MINCRYST Search for Berndtite using: Visit our Advertisers for Berndtite : Translate Berndtite Mineral Data : Ask about Berndtite here : Print or Cut-and-Paste your Berndtite Specimen Label here :
|
||
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |