| Coronadite Mineral Data |
General Coronadite Information |
|||
| Pb(Mn++++,Mn++)8O16 | |||
| Molecular Weight = 933.55 gm | |||
| Barium 1.47 % Ba 1.64 % BaO | |||
| Manganese 45.31 % Mn 3.80 % MnO / 67.05 % MnO2 | |||
| Aluminum 0.29 % Al 0.55 % Al2O3 | |||
| Vanadium 1.09 % V 1.95 % V2O5 | |||
| Lead 24.41 % Pb 26.30 % PbO | |||
| Oxygen 27.42 % O | |||
| ______ ______ | |||
| 100.00 % 101.29 % = TOTAL OXIDE | |||
| Pb1.1Ba0.1Mn4+7.2Mn2+0.5V5+0.2Al0.1O16 | |||
| Primary mineral in hydrothermal veins or from hot springs, secondary origin in oxidized zones above Mn deposits and bedded sedimentary rocks. | |||
| Valid Species (Pre-IMA) 1904 | |||
| Coronado vein, Clifton-Morenci district, Greenlee County, Arizona. Link to MinDat.org Location Data. | |||
| Named for Francisco Vasquez de Coronado (ca 1500-1554), first Spanish explorer of the American southwest. | |||
Coronadite Image | |||
|
|
|
||
|
|
|
||
Coronadite Crystallography |
|||
| a:b:c =3.4653:1:3.4291 | |||
| a = 9.938, b = 2.8678, c = 9.834, Z = 1; beta = 90.39° V = 280.26 Den(Calc)= 5.53 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/m | |||
| By Intensity(I/Io): 3.104(1), 3.466(0.6), 1.542(0.5), | |||
|
Mouse |
| ||
Physical Properties of Coronadite |
|||
| Grayish black, Dark gray, Black. | |||
| 5.44 | |||
| Opaque | |||
| Botryoidal - "Grape-like" rounded forms (e.g.. malachite). | |||
| Fibrous - Crystals made up of fibers. | |||
| 4.5-5 - Near Apatite | |||
| Sub Metallic | |||
| brownish black | |||
Optical Properties of Coronadite |
|||
| Biaxial (?) | |||
| NCalc= 2.71 - from Gladstone-Dale relationship (KC = 0.309) where Ncalc=Dcalc*KC+1 NCalc= 2.68 - from Gladstone-Dale relationship (KC = 0.309) where Ncalc=Dmeas*KC+1 |
|||
| strong dark brown. | |||
| strong dark brown. | |||
| gray. | |||
Calculated Properties of Coronadite |
|||
relectron=5.00 gm/cc |
|||
| Fermion Index = 0.05673 Boson Index = 0.94327 |
|||
PECoronadite = 433.51 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Coronadite is Not Radioactive |
|||
Coronadite Classification |
|||
| 7.9.1.4 (7)Multiple Oxides | |||
| (7.9)where A B (O)2 | |||
| (7.9.1)Cryptomelane Group (Hard black, fine-grained) | |||
| IV/D.08-70 IV - Oxides | |||
| IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds) | |||
| IV/D.08 - Cryptomelane group | |||
Other Coronadite Information |
|||
| NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) | |||
| Links to other databases for Coronadite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 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 - YupRocks 15 -École des Mines de Paris Search for Coronadite using: Visit our Advertisers for Coronadite : Translate Coronadite Mineral Data : Ask about Coronadite here : Print or Cut-and-Paste your Coronadite Specimen Label here :
|
|||