General Orthopinakiolite Information
|
Chemical Formula: |
(Mg,Mn++)2Mn+++BO5 |
Composition: |
Molecular Weight = 209.67 gm |
| |
Magnesium 17.39 % Mg 28.83 % MgO |
| |
Manganese 39.30 % Mn 16.92 % MnO / 37.65 % Mn2O3 |
| |
Boron 5.16 % B 16.60 % B2O3 |
| |
Oxygen 38.15 % O |
| |
______ ______ |
| |
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Mg1.5Mn2+0.5Mn3+BO5 |
IMA Status: |
Approved IMA 1960 |
Locality: |
Link to MinDat.org Location Data. |
Synonym: |
ICSD 200425 |
| |
PDF 33-656 |
| |
Search for Orthopinakiolite Images |
Images:
|
|
| | |
Orthopinakiolite Crystallography
|
Axial Ratios: |
a:b:c =1.4579:1:0.4819 |
Cell Dimensions: |
a = 18.357, b = 12.591, c = 6.068, Z = 16; V = 1,402.51 Den(Calc)= 3.97 |
Crystal System: |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm |
X Ray Diffraction: |
By Intensity(I/Io): 2.596(1), 2.531(0.85), 5.192(0.65), |
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
|
|
|
Takeuchi Y , Haga N , Kato T , Miura Y , The Canadian Mineralogist , 16 (1978) p.475-485, Orthopinakiolite, Me2.95O2[BO3]: its crystal structure, and relationship to pinakiolite, Me2.90O2[BO3], Note: z-coordinate of O9 changed. y-coordinate of M7* changed.
|
|
| |
Physical Properties of Orthopinakiolite
|
Cleavage: |
[010] Good |
Color: |
Black. |
Density: |
4.03 |
Diaphaniety: |
Opaque |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Hardness: |
6 - Orthoclase |
Luster: |
Metallic |
Streak: |
brown gray |
| |
Calculated Properties of Orthopinakiolite
|
Electron Density: |
relectron=3.81 gm/cc note: rOrthopinakiolite =3.97 gm/cc. |
Fermion Index |
Fermion Index = 0.02783 Boson Index = 0.97217 |
Photoelectric: |
PEOrthopinakiolite = 10.58 barns/electron U=PEOrthopinakiolite x relectron= 40.27 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Orthopinakiolite is Not Radioactive |
| |
Orthopinakiolite Classification
|
Dana Class: |
24.2.5.1 (24)Borates - Anhydrous |
| |
(24.2)where (A)2 BO2 [XO3] |
| |
(24.2.5)Dana Group |
| |
24.2.5.1 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m |
Strunz Class: |
V/G.04-80 V - Nitrates, Carbonates and Borates |
| |
V/G - "Insel" borates [BO3]3- "inseln" |
| |
V/G.04 - Ludwigite group |
| |
V/G.04-10 Ludwigite Mg2FeBO5 Pbam 2/m 2/m 2/m |
| |
V/G.04-20 Vonsenite Fe2FeBO5 Pbam 2/m 2/m 2/m |
| |
V/G.04-30 Azoproite (Mg,Fe)2(Fe,Ti,Mg)BO5 Pbam 2/m 2/m 2/m |
| |
V/G.04-40 Chestermanite Mg2(Fe,Mg,Al,Sb)BO3O2 Pbam 2/m 2/m 2/m |
| |
V/G.04-50 Fredrikssonite Mg2(Mn,Fe)O2(BO3) Pbam 2/m 2/m 2/m |
| |
V/G.04-60 Bonaccordite Ni2FeBO5 Pbam 2/m 2/m 2/m |
| |
V/G.04-70 Takeuchiite Mg2MnO2(BO3) Pnnm 2/m 2/m 2/m |
| |
V/G.04-80 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m |
| |
V/G.04-90 Blatterite (Mn,Mg)35Sb3(Mn,Fe)9(BO3)16O32 Pnnm 2/m 2/m 2/m |
| |
V/G.04-100 Gaudefroyite Ca4Mn3-x(BO3)3(CO3)(O,OH)3 P 63 6 |
| |
Other Orthopinakiolite Information
|
References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Orthopinakiolite :
1 -Am. Min. Crystal Structure Database
2 -Athena
3 - CalTech Mineral Spectroscopy
4 - EUROmin Project
5 -Google Images
6 -Google Scholar
7 -Handbook of Mineralogy (UofA)
8 -MinDAT
9 -MinMax(Deutsch)
10 -MinMax(English)
11 -Mineralienatlas (Deutsch)
12 -QUT Mineral Atlas
13 - WWW-MINCRYST
14 -École des Mines de Paris
Search for Orthopinakiolite using:
[ALTAVISTA]
[AOL]
[About.com]
[All-The-Web]
[HotBot]
[Ixquick]
[LookSmart]
[MAMMA]
[MSN.COM]
[Netscape]
[Teoma]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Orthopinakiolite :
AA Mineral Specimens
B and L Minerals
Crystal Vaults
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop
Translate Orthopinakiolite Mineral Data :
Ask about Orthopinakiolite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in
Español
Print or Cut-and-Paste your Orthopinakiolite Specimen Label here :
|
Orthopinakiolite
(Mg,Mn++)2Mn+++BO5
Dana No: 24.2.5.1 Strunz No: V/G.04-80
Locality:
Notes:
|
|
| |
| |
|
| |