| Reidite Mineral Data |
General Reidite Information |
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| ZrSiO4 | |||
| Molecular Weight = 183.31 gm | |||
| Zirconium 49.77 % Zr 67.22 % ZrO2 | |||
| Silicon 15.32 % Si 32.78 % SiO2 | |||
| Oxygen 34.91 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Zr(SiO4) | |||
| Inclusions in shocked zircon grains with a scheelite-type structure. Pressures of 30 GPa to 53 GPa are required for this transition. | |||
| Approved IMA 2001 (Dana # Added) | |||
| Ejecta from the Chesapeake Bay impact structure (Eocene), found in upper Eocene sediments in the continental slope off New Jersey, USA. Link to MinDat.org Location Data. | |||
| Named for Alan F. Reid who first produced this high pressure phase in the laboratory. | |||
| IMA2001-013 | |||
Reidite Image | |||
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Reidite Crystallography |
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| a:c = 1:2.21739 | |||
| a = 4.738, c = 10.506, Z = 4; V = 235.85 Den(Calc)= 5.16 | |||
| Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 41/a | |||
| By Intensity(I/Io): 2.81(1)(112), 1.755(0.6)(204), 1.437(0.5)(132),2.065(0.5)(211), 1.55(0.45)(116), 3.29(0.4), 4.3(0.4)(101), 1.805(0.3)(213), | |||
Physical Properties of Reidite |
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| None | |||
| White. | |||
| Translucent | |||
| Brittle - Irregular - Very brittle fracture producing irregular fragments | |||
| Epitaxial - Crystallographic alignment with a precursor mineral | |||
| Inclusions - Generally found as inclusions in other minerals. | |||
| 7.5 - Garnet | |||
| Adamantine | |||
| white | |||
Optical Properties of Reidite |
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| CI calc= 0.403 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1255,KC= 0.21 |
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| Uniaxial (+), w=1.64, e=1.655, bire=0.0150. | |||
Calculated Properties of Reidite |
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relectron=4.84 gm/cc |
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| Fermion Index = 0.06315 Boson Index = 0.93685 |
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PEReidite = 68.77 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Reidite is Not Radioactive |
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Reidite Classification |
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| 51.5.6.1 (51)Nesosilicate Insular SiO4 Groups Only | |||
| (51.5)with cations in >[6] coordination | |||
| (51.5.6)Dana Group | |||
| VIII/A.09-05 VIII - Silicates | |||
| VIII/A - Nesosilicates with [SiO4]4-groups, cations of octahedral and cubic orientation [8+6] | |||
| VIII/A.09 - Zircon - Thorogummite series | |||
Other Reidite Information |
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| NAME( AmMin, Vol 87, p 562) PHYS. PROP.(AmMin, Vol 87, p 562) OPTIC PROP.(AmMin, Vol 87, p 562) | |||
| Links to other databases for Reidite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas Search for Reidite using: Visit our Advertisers for Reidite : Translate Reidite Mineral Data : Ask about Reidite here : Print or Cut-and-Paste your Reidite Specimen Label here :
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