|
Galaxite Mineral Data + |
General Galaxite Information |
|||
| (Mn,Mg)(Al,Fe+++)2O4 | |||
| Molecular Weight = 172.72 gm | |||
| Magnesium 1.41 % Mg 2.33 % MgO | |||
| Manganese 28.63 % Mn 36.96 % MnO | |||
| Aluminum 29.68 % Al 56.08 % Al2O3 | |||
| Iron 3.23 % Fe 4.62 % Fe2O3 | |||
| Oxygen 37.05 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Mn2+0.9Mg0.1Al1.9Fe3+0.1O4 | |||
| In carbonate-rich, silica undersaturated parts of metamorphosed manganese deposit. | |||
| Valid Species (Pre-IMA) 1932 | |||
| Bald Knob near the town of Galax, Alleghany co., North Carolina, USA. Link to MinDat.org Location Data. | |||
| Named after its location. | |||
| ICSD 66855 | |||
| PDF 29-880 | |||
Galaxite Image | |||
|
|
|
||
Galaxite Crystallography |
|||
| a = 8.271, Z = 8; V = 565.81 Den(Calc)= 4.05 | |||
| Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m | |||
| By Intensity(I/Io): 2.492(1), 2.921(0.6), 1.46(0.45), | |||
Mouse |
|
||
|
Mouse |
| ||
Physical Properties of Galaxite |
|||
| [???] Indistinct | |||
| Brown red, Black. | |||
| 4.23 | |||
| Opaque | |||
| Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. | |||
| Granular - Generally occurs as anhedral to subhedral crystals in matrix. | |||
| 7.5 - Garnet | |||
| Non-fluorescent. | |||
| Metallic | |||
| brownish red | |||
Optical Properties of Galaxite |
|||
| CI meas= -0.048 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.095 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2279,KPDmeas= 0.2182,KC= 0.2081 |
|||
| Isotropic, n=1.923. | |||
Calculated Properties of Galaxite |
|||
relectron=4.07 gm/cc |
|||
| Fermion Index = 0.00227 Boson Index = 0.99773 |
|||
PEGalaxite = 9.24 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Galaxite is Not Radioactive |
|||
Galaxite Classification |
|||
| 7.2.1.2 (7)Multiple Oxides | |||
| (7.2)(A+ B++)2 X4 Spinel group | |||
| (7.2.1)(Aluminum subgroup) | |||
| IV/B.01-30 IV - Oxides | |||
| IV/B - Oxides with metal : oxygen = 3:4 (spinel type M3O4 and related), Aluminat-Spinels | |||
| IV/B.01 - Spinel group, Spinel - Gahnite series | |||
Other Galaxite Information |
|||
| NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) | |||
| Links to other databases for Galaxite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineral and Gemstone Kingdom 13 - Mineralienatlas (Deutsch) 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - WWW-MINCRYST Search for Galaxite using: Visit our Advertisers for Galaxite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Galaxite Mineral Data : Ask about Galaxite here : Print or Cut-and-Paste your Galaxite Specimen Label here :
|
|||