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Goedkenite Mineral Data + |
General Goedkenite Information |
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| (Sr,Ca)2Al(PO4)2(OH) | |||
| Molecular Weight = 385.40 gm | |||
| Strontium 34.10 % Sr 40.33 % SrO | |||
| Calcium 5.20 % Ca 7.28 % CaO | |||
| Aluminum 7.00 % Al 13.23 % Al2O3 | |||
| Phosphorus 16.07 % P 36.83 % P2O5 | |||
| Hydrogen 0.26 % H 2.34 % H2O | |||
| Oxygen 37.36 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Sr1.5Ca0.5Al(PO4)2(OH) | |||
| Approved IMA 1975 | |||
| Palermo pegmatite, North Groton, Grafton County, New Hampshire, USA Link to MinDat.org Location Data. | |||
| Named for V. L. Goedken. | |||
Goedkenite Image | |||
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Goedkenite Crystallography |
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| a:b:c =1.4721:1:1.2648 | |||
| a = 8.45, b = 5.74, c = 7.26, Z = 2; beta = 113.7° V = 322.43 Den(Calc)= 3.97 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m | |||
| By Intensity(I/Io): 3.061(1), 2.585(0.7), 2.841(0.6), | |||
Physical Properties of Goedkenite |
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| [100] Good | |||
| Colorless, Light yellow. | |||
| 3.83 | |||
| Transparent | |||
| 5 - Apatite | |||
| Vitreous - Adamantine | |||
| white | |||
Optical Properties of Goedkenite |
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| CI meas= -0.003 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.032 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1708,KPDmeas= 0.177,KC= 0.1765 |
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| Biaxial (+), a=1.669, b=1.673, g=1.692, bire=0.0230, 2V(Calc)=50, 2V(Meas)=45-50. | |||
Calculated Properties of Goedkenite |
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relectron=3.64 gm/cc |
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| Fermion Index = 0.02412 Boson Index = 0.97588 |
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PEGoedkenite = 39.61 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Goedkenite is Not Radioactive |
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Goedkenite Classification |
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| 41.10.4.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | |||
| (41.10)where (A++ B++)3 (XO4)2 Zq | |||
| (41.10.4)Dana Group | |||
| VII/B.24-10 VII - Phosphates, Arsenates and Vanadates | |||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O, OH. cations of medium and big size: Mg, Cu, Zn, and Ca, Na, K, Ba, Pb | |||
| VII/B.24 - Brackebuschite - Tsumebite group, Bearthite - Jamesite series | |||
Other Goedkenite Information |
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| PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Goedkenite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris Search for Goedkenite using: Visit our Advertisers for Goedkenite : Translate Goedkenite Mineral Data : Ask about Goedkenite here : Print or Cut-and-Paste your Goedkenite Specimen Label here :
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