Reidite
A valid IMA mineral species
This page kindly sponsored in memory of Dr Alan Reid AM
Formula:
ZrSiO4
Colour:
Colourless
Lustre:
Adamantine
Hardness:
7½
Specific Gravity:
5.2 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named in 2002 by Billy P. Glass, Shaobin Liu, and Peter B. Leavens in honor of Alan Forrest Reid (26 March 1931, Gisborne, New Zealand - 17 January 2013, Adelaide, Australia), Commonwealth Scientific and Industrial Research Organisation (CSIRO), who first produced the phase in high-pressure laboratory experiments in 1969. At CSIRO he was, at different times, Director of Minerals, Energy and Construction; Director of CSIRO's Institute of Energy and Earth Resources; and Chief of the Division of Mineral Engineering. He also analyzed Apollo lunar samples and codescribed the mineral tranquillityite.
Co-Type Localities:
â Deep Sea Drilling Project Site 612, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 903C, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 904A, Upper continental slope of New Jersey, Atlantic Ocean
â Bath Cliff, Saint John Parish, Barbados
â Ocean Drilling Program Hole 903C, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 904A, Upper continental slope of New Jersey, Atlantic Ocean
â Bath Cliff, Saint John Parish, Barbados
Dimorph of:
A high-pressure polymorph of Zircon with the scheelite structure.
The presence of reidite in shocked zircon (in which it may occur as micron-sized lamellae) is evidence of shock pressures in excess of âŒ30 GPa.
The presence of reidite in shocked zircon (in which it may occur as micron-sized lamellae) is evidence of shock pressures in excess of âŒ30 GPa.
Unique Identifiers
Mindat ID:
11467
Long-form identifier:
mindat:1:1:11467:3
GUID
(UUID V4):
(UUID V4):
8d65515d-9b55-4ec1-b4b3-d64049a0c14f
IMA Classification of Reidite
Approved
IMA Formula:
Zr(SiO4)
Approval year:
2001
First published:
2002
Classification of Reidite
9.AD.45
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Rei | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Reidite
Adamantine
Colour:
Colourless
Streak:
white
Hardness:
7½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.2 g/cm3 (Calculated)
Optical Data of Reidite
Type:
Uniaxial
Pleochroism:
Non-pleochroic
Chemistry of Reidite
Mindat Formula:
ZrSiO4
Elements listed:
Crystallography of Reidite
Crystal System:
Tetragonal
Class (H-M):
4/m - Dipyramidal
Space Group:
I41/a
Cell Parameters:
a = 4.738 Å, c = 10.506 Å
Ratio:
a:c = 1 : 2.217
Unit Cell V:
235.84 Ă
Âł
Z:
4
Morphology:
skeletal crystals up to 10 ”m in length and 0.3 ”m in width; also lamellar intergrowths in host zircon crystals.
Epitaxial Relationships of Reidite
Epitaxial Minerals:
Zircon | Zr(SiO4) |
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.81 Ă | (100) |
1.755 Ă | (60) |
2.065 Ă | (50) |
1.441 Ă | (50) |
1.55 Ă | (45) |
4.30 Ă | (40) |
3.29 Ă | (40) |
Comments:
ODP Site 904, New Jersey continental shelf, USA. Data are from the type description.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
30 : Terrestrial impact minerals |
Type Occurrence of Reidite
Co-Type Localities:
â Deep Sea Drilling Project Site 612, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 903C, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 904A, Upper continental slope of New Jersey, Atlantic Ocean
â Bath Cliff, Saint John Parish, Barbados
â Ocean Drilling Program Hole 903C, Upper continental slope of New Jersey, Atlantic Ocean
â Ocean Drilling Program Hole 904A, Upper continental slope of New Jersey, Atlantic Ocean
â Bath Cliff, Saint John Parish, Barbados
General Appearance of Type Material:
skeletal crystals replacing zircon. The crystals are up to 10 ”m in length and 0.3 ”m in width.
Place of Conservation of Type Material:
Holotype material is deposited at the Smithsonian Institution (National Museum of Natural History), Washington, D.C., catalog number NMNH 173504.
Geological Setting of Type Material:
In upper Eocene impact ejecta layer, probably from the Chesapeake Bay impact structure.
Associated Minerals at Type Locality:
Reference:
Glass, Billy P., Shaobin Liu, and P. B. Leavens (2002) Reidite: An impact-produced high-pressure polymorph of zircon found in marine sediments. American Mineralogist: 87: 562-565.
Synonyms of Reidite
Other Language Names for Reidite
Relationship of Reidite to other Species
Member of:
Other Members of this group:
Coffinite | U(SiO4) · nH2O | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Hafnon | HfSiO4 | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Stetindite-(Ce) | Ce(SiO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Thorite | Th(SiO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Zircon | Zr(SiO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
9.AD. | Adrianite | Ca12(Al4Mg3Si7)O32Cl6 |
9.AD.05 | Larnite | Ca2SiO4 |
9.AD.10 | Calcio-olivine | Ca2SiO4 |
9.AD.15 | Merwinite | Ca3Mg(SiO4)2 |
9.AD.20 | Bredigite | Ca7Mg(SiO4)4 |
9.AD.25 | Andradite | Ca3Fe3+2(SiO4)3 |
9.AD.25 | Almandine | Fe2+3Al2(SiO4)3 |
9.AD.25 | Calderite | Mn2+3Fe3+2(SiO4)3 |
9.AD.25 | Goldmanite | Ca3V3+2(SiO4)3 |
9.AD.25 | Grossular | Ca3Al2(SiO4)3 |
9.AD.25 | Henritermierite | Ca3Mn3+2(SiO4)2[â»(OH)4] |
9.AD.25 | Kimzeyite | Ca3Zr2(SiO4)(AlO4)2 |
9.AD.25 | Knorringite | Mg3Cr2(SiO4)3 |
9.AD.25 | Majorite | Mg3(MgSi)(SiO4)3 |
9.AD.25 | Morimotoite | Ca3(TiFe2+)(SiO4)3 |
9.AD.25 | Pyrope | Mg3Al2(SiO4)3 |
9.AD.25 | Schorlomite | Ca3Ti2(SiO4)(Fe3+O4)2 |
9.AD.25 | Spessartine | Mn2+3Al2(SiO4)3 |
9.AD.25 | Uvarovite | Ca3Cr2(SiO4)3 |
9.AD.25 | Wadalite | (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3 |
9.AD.25 va | Hydrougrandite | (Ca,Mg,Fe2+)3(Fe3+,Al)2[(OH)4(SiO4)2] |
9.AD.25 va | Yamatoite | (Mn2+,Ca)3(V3+,Al)2(SiO4)3 |
9.AD.25 | Holtstamite | Ca3Al2(SiO4)2[â»(OH)4] |
9.AD.25 | Khoharite | Mg3Fe3+2(SiO4)3 |
9.AD.25 | Kerimasite | Ca3Zr2(SiO4)(Fe3+O4)2 |
9.AD.25 | Toturite | Ca3Sn2(SiO4)(Fe3+O4)2 |
9.AD.25 | Momoiite | Mn2+3V3+2(SiO4)3 |
9.AD.25 | Eringaite | Ca3Sc2(SiO4)3 |
9.AD.25 | Irinarassite | Ca3Sn2(SiO4)(AlO4)2 |
9.AD.25 | Menzerite-(Y) | (Y2Ca)Mg2(SiO4)3 |
9.AD.25 | Eltyubyuite | Ca12Fe3+10Si4O32Cl6 |
9.AD.25 | Blythite | Mn2+3Mn3+2[SiO4]3 |
9.AD.25 | Skiagite | Fe2+3Fe3+2[SiO4]3 |
9.AD.25 | Hutcheonite | Ca3Ti2(SiO4)(AlO4)2 |
9.AD.25 | UM1984-37-SiO:CrMn | Mn2+3Cr3+2(SiO4)3 |
9.AD.25 | Rubinite | Ca3Ti3+2Si3O12 |
9.AD.25 | Nikmelnikovite | Ca12(Fe2+Fe3+3Al3â»)[SiO4]6[â»(OH)4]5â»4 |
9.AD.25 | Midbarite | Ca3Mg2(V2Si)O12 |
9.AD.30 va | Auerlite | near Th(Si,P)O4 |
9.AD.30 | Coffinite | U(SiO4) · nH2O |
9.AD.30 | Hafnon | HfSiO4 |
9.AD.30 | Thorite | Th(SiO4) |
9.AD.30 | Zircon | Zr(SiO4) |
9.AD.30 | Stetindite-(Ce) | Ce(SiO4) |
9.AD.35 | Huttonite | ThSiO4 |
9.AD.35 | Tombarthite-(Y) | Y4(Si,H4)4O12-x(OH)4+2x |
9.AD.40 | Eulytine | Bi4(SiO4)3 |
9.AD.55 | Jeffbenite | Mg3Al2Si3O12 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Reidite
mindat.org URL:
https://www.mindat.org/min-11467.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Reidite
Localities for Reidite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Atlantic Ocean (TL) | |
| B.P. Glass (2002) |
B.P. Glass (2002) | |
B.P. Glass (2002) | |
Australia | |
| Erickson et al. (2020) |
| Cox et al. (2018) |
Barbados (TL) | |
| B.P. Glass (2002) |
Canada | |
| Jurak et al. (2020, March) |
| Edahbi et al. (2018) +1 other reference |
China | |
| Yin +3 other references |
Egypt | |
| Aaron J. Cavosie +1 other reference |
France | |
| Plan et al. (2021) |
Germany | |
| Tschauner +3 other references |
Gucsik (2006) | |
| Thomas et al. (2022) |
India | |
| Raychaudhuri et al. (2021, March) |
Mexico | |
| Zhao et al. (2021) |
Oman | |
| Xing et al. (2020) |
Sweden | |
| Martell et al. (2021) |
UK | |
| Plan et al. (2022, August) |
| Reddy et al. (2015) |
USA | |
| French et al. (2004) |
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