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Hurlbutite Mineral Data + |
General Hurlbutite Information |
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| CaBe2(PO4)2 | |||
| Molecular Weight = 248.05 gm | |||
| Calcium 16.16 % Ca 22.61 % CaO | |||
| Beryllium 7.27 % Be 20.17 % BeO | |||
| Phosphorus 24.97 % P 57.23 % P2O5 | |||
| Oxygen 51.60 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| CaBe2(PO4)2 | |||
| Valid Species (Pre-IMA) 1952 | |||
| G. E. Smith mine, Newport, Sullivan County, New Hampshire, USA. Link to MinDat.org Location Data. | |||
| Named for Cornelius S. Hurlbut, Jr. (1906-), professor of mineralogy, Harvard University, Cambridge. | |||
| ICSD 6189 | |||
| PDF 34-1441 | |||
Hurlbutite Image | |||
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Hurlbutite Crystallography |
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| a:b:c =0.945:1:0.8879 | |||
| a = 8.299, b = 8.782, c = 7.798, Z = 4; beta = 90.5° V = 568.31 Den(Calc)= 2.90 | |||
| Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a | |||
| By Intensity(I/Io): 3.67(1), 2.78(0.9), 3.03(0.9), | |||
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Mouse |
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Physical Properties of Hurlbutite |
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| None | |||
| Colorless, Greenish white, Yellow. | |||
| 2.877 | |||
| Transparent to Translucent | |||
| Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | |||
| Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). | |||
| 6 - Orthoclase | |||
| Non-fluorescent. | |||
| Vitreous - Greasy | |||
| white | |||
Optical Properties of Hurlbutite |
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| CI meas= -0.04 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.031 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2069,KPDmeas= 0.2086,KC= 0.2006 |
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| Biaxial (-), a=1.595, b=1.601, g=1.604, bire=0.0090, 2V(Calc)=70, 2V(Meas)=70. Dispersion r > v weak. | |||
Calculated Properties of Hurlbutite |
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relectron=2.85 gm/cc |
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| Fermion Index = 0.07313 Boson Index = 0.92687 |
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PEHurlbutite = 3.27 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Hurlbutite is Not Radioactive |
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Hurlbutite Classification |
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| 38.3.6.1 (38)Anhydrous Phosphates, etc | |||
| (38.3)(A+ B++)3 (XO4)2 | |||
| (38.3.6)Dana Group | |||
| VII/A.01-40 VII - Phosphates, Arsenates and Vanadates | |||
| VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of small size: Li, Be, Al | |||
| VII/A.01 - Berlinite - Beryllonite - Hurlbutite series | |||
Other Hurlbutite Information |
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| PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | |||
| Links to other databases for Hurlbutite : 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 Hurlbutite using: Visit our Advertisers for Hurlbutite : Translate Hurlbutite Mineral Data : Ask about Hurlbutite here : Print or Cut-and-Paste your Hurlbutite Specimen Label here :
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