![]() |
Luddenite Mineral Data |
General Luddenite Information |
|||
![]() |
Pb2Cu2Si5O14•14(H2O) | ||
![]() |
Molecular Weight = 1,158.13 gm | ||
Copper 10.97 % Cu 12.36 % Cu2O | |||
Silicon 12.13 % Si 25.94 % SiO2 | |||
Hydrogen 2.44 % H 21.78 % H2O | |||
Lead 35.78 % Pb 38.54 % PbO | |||
Oxygen 38.68 % O | |||
______ ______ | |||
100.00 % 98.62 % = TOTAL OXIDE | |||
![]() |
Pb2Cu2Si5O14•14(H2O) | ||
![]() |
Pb-Cu-Ag prospect. | ||
![]() |
Approved IMA 1981 | ||
![]() |
Artillery Peak, Mohave County, Arizona, USA. Link to MinDat.org Location Data. | ||
![]() |
Named for Raymond W. Ludden, chief geologist, Phelps-Dodge Corporation. | ||
![]() |
Luddenite + Pronunciation ![]() |
||
Luddenite Image | |||
![]() |
|
||
Luddenite Crystallography |
|||
![]() |
a:b:c =0.3913:1:0.7337 | ||
![]() |
a = 7.85, b = 20.06, c = 14.72, Z = 6; beta = 90.78° V = 2,317.76 Den(Calc)= 4.98 | ||
![]() |
Monoclinic Space Group: Unk | ||
![]() |
By Intensity(I/Io): 3.173(1), 7.361(1), 2.918(0.8), | ||
Physical Properties of Luddenite |
|||
![]() |
{???} Distinct | ||
![]() |
Nickel green. | ||
![]() |
4.45 | ||
![]() |
Translucent | ||
![]() |
Aggregates - Made of numerous individual crystals or clusters. | ||
![]() |
Fan Shaped - Occurs as radiating crystals shaped like a fan. | ||
![]() |
Rosette - Bundled tabular aggregates resembling rose flower petals. | ||
![]() |
4 - Fluorite | ||
![]() |
light green | ||
Optical Properties of Luddenite |
|||
![]() |
CI meas= 0.072 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= 0.171 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1726,KPDmeas= 0.1931,KC= 0.2082 Ncalc = 1.93 - 2.04 |
||
![]() |
Biaxial (?), a=1.852, g=1.867, bire=0.0150, 2V(Meas)=40. | ||
![]() |
yellow green. | ||
![]() |
yellow green. | ||
![]() |
emerald green. | ||
Calculated Properties of Luddenite |
|||
![]() |
Bulk Density (Electron Density)=4.18 gm/cc note: Specific Gravity of Luddenite =4.45 gm/cc. |
||
![]() |
Fermion Index = 0.08 Boson Index = 0.92 |
||
![]() |
PELuddenite = 590.19 barns/electron U=PELuddenite x rElectron Density=2,467.32 barns/cc. |
||
![]() |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Luddenite is Not Radioactive |
||
Luddenite Classification |
|||
![]() |
78.07.11.01 (78)Unclassified silicates | ||
(78.07)wholly unclassified silicates | |||
(78.07.11)Dana Group | |||
![]() |
09.HH.10 09 - SILICATES (Germanates) | ||
09.H - Unclassified Silicates | |||
09.HH -With Pb | |||
Other Luddenite Information |
|||
![]() |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
![]() |
Links to other databases for Luddenite : 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 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Luddenite using: Visit our Advertisers for Luddenite : Ask about Luddenite here : Print or Cut-and-Paste your Luddenite Specimen Label here :
|
||
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.