Cyrtolite
A variety of Zircon
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About Cyrtolite
Formula:
Zr[(SiO4),(OH)4]
Name:
Name refers to its curved crystal faces. From the Greek ΞΊΞ½ΟΟΞΏΟ, for bent.
A variety of Zircon
Cyrtolite is a hydrous Th+U bearing zircon (up to 27 mas.% of sum). It sometimes occurs with curved, rounded crystals.
Dana's Textbook of Mineralogy by W.E. Ford (pg 611, 4th ed., 1947) treats cyrtolite as a chemical variety of zircon that "contains uranium, yttrium, and other rare elements". Any old zircon containing uranium will be metamict.
Jeffrey de Fourestier in Glossary of Mineral Synonyms (pg 89, Special publication #2, Canadian Mineralogist, 1998) calls cyrtolite a metamict zircon.
Originally reported from Rockport, Essex Co., Massachusetts, USA, by W.J. Knowlton in Art. XXIV Contributions to Chemistry from the Laboratory of the Lawrence Scientific School, No. 4, On a new mineral from Rockport, Mass. in Am. Jour. Sci., 2nd Series, vol. XLIV, no. 131, pp 224-226, (1867).
Cyrtolite is a hydrous Th+U bearing zircon (up to 27 mas.% of sum). It sometimes occurs with curved, rounded crystals.
Dana's Textbook of Mineralogy by W.E. Ford (pg 611, 4th ed., 1947) treats cyrtolite as a chemical variety of zircon that "contains uranium, yttrium, and other rare elements". Any old zircon containing uranium will be metamict.
Jeffrey de Fourestier in Glossary of Mineral Synonyms (pg 89, Special publication #2, Canadian Mineralogist, 1998) calls cyrtolite a metamict zircon.
Originally reported from Rockport, Essex Co., Massachusetts, USA, by W.J. Knowlton in Art. XXIV Contributions to Chemistry from the Laboratory of the Lawrence Scientific School, No. 4, On a new mineral from Rockport, Mass. in Am. Jour. Sci., 2nd Series, vol. XLIV, no. 131, pp 224-226, (1867).
Unique Identifiers
Mindat ID:
7493 (as Cyrtolite)
4421 (as Zircon)
4421 (as Zircon)
Long-form identifier:
mindat:1:1:7493:9 (as Cyrtolite)
mindat:1:1:4421:5 (as Zircon)
mindat:1:1:4421:5 (as Zircon)
GUID
(UUID V4):
(UUID V4):
9a4f4baf-6095-48ec-a3e5-dfba42952615 (as Cyrtolite)
ae513338-cdec-41da-ad06-93360c6ba9d2 (as Zircon)
ae513338-cdec-41da-ad06-93360c6ba9d2 (as Zircon)
Pronunciation of Cyrtolite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Chemistry of Cyrtolite
Mindat Formula:
Zr[(SiO4),(OH)4]
Elements listed:
Other Language Names for Cyrtolite
Simplified Chinese:ζ²ζΆη³
Common Associates
Associated Minerals Based on Photo Data:
26 photos of Cyrtolite associated with Uraninite | UO2 |
21 photos of Cyrtolite associated with Gummite | |
20 photos of Cyrtolite associated with Quartz | SiO2 |
15 photos of Cyrtolite associated with Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
12 photos of Cyrtolite associated with Fergusonite-(Y) | YNbO4 |
12 photos of Cyrtolite associated with Mica Group | |
11 photos of Cyrtolite associated with Uranophane | Ca(UO2)2(SiO3OH)2 Β· 5H2O |
11 photos of Cyrtolite associated with Autunite | Ca(UO2)2(PO4)2 Β· 10-12H2O |
9 photos of Cyrtolite associated with Thorite | Th(SiO4) |
9 photos of Cyrtolite associated with Clarkeite | (Na,Ca,Pb)(UO2)O(OH) Β· 0-1H2O |
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 Cyrtolite
mindat.org URL:
https://www.mindat.org/min-7493.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Cyrtolite
Reference List:
Localities for Cyrtolite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
β - 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.
Australia | |
| Calderwood +2 other references |
Bolivia | |
| Federico Ahlfeld & Jorge Munoz Reyes: Las Especies Minerales de Bolivia (Banco Minero de Bolivia, 1955) |
Brazil | |
| Lagache et al. (1997) |
Canada | |
| Gross (1957) |
| Robertson (1976) |
| Ref.: Geological Survey of Canada ... |
www.geologyontario.mndm.gov.on.ca (n.d.) | |
| Hewitt (1967) |
| Sabina (1986) |
| www.geologyontario.mndm.gov.on.ca (n.d.) |
www.geologyontario.mndm.gov.on.ca (2021) | |
| www.geologyontario.mndm.gov.on.ca (n.d.) |
Ref.: Geological Survey of Canada ... | |
Hugh S. Spence (1930) +2 other references | |
GSC misc. report 39 +3 other references | |
| Betts (n.d.) |
www.geologyontario.mndm.gov.on.ca (n.d.) | |
| MDI Number: MDI31E11NE00070 |
| www.geologyontario.mndm.gov.on.ca (n.d.) |
Ref.: Geological Survey of Canada ... | |
| Sabina (1986) |
| Ref.: Geological Survey of Canada ... |
| Rocks and Minerals For The Collector: ... +1 other reference |
| Hogarth |
China | |
| Yang et al. (2008) |
| Jinhui Yang et al. (2008) +1 other reference |
| Wu et al. (2002) |
| Zhibin Wang and Liangyi Wang (1998) |
| Yantian Guo and Guangming Tian (1979) |
| Wu et al. (2002) |
| Li +4 other references |
| Hong Zhong et al. (2007) |
| Zhong et al. (2007) +4 other references |
| Chunhong Wang et al. (2006) |
| Denghong Wang et al. (2003) |
DR Congo | |
| Alain Hanson specimen (see http://www.mindat.org/forum.php?read,11,161069,161421,quote=1) +1 other reference |
Ethiopia | |
| Pavel.M. Kartashov (n.d.) |
Finland | |
| Pavel M. Kartashov data of 2011 |
Kazakhstan | |
| Oitseva et al. (2017) |
| Dahlkamp et al. (2009) |
Kyrgyzstan | |
| |
Djenchuraeva et al. (2008) +1 other reference | |
Madagascar | |
| Rudy Bolona specimen |
| Lacroix (1912) |
Mongolia | |
| Tumenbayar et al. (2000) |
New Zealand | |
| Beck et al. (1958) |
Russia | |
| Gordienko et al. (2016) |
| Mironov A.G. and Gofman A.F (1979) |
| Gordienko et al. (2016) |
| Pavel.M. Kartashov (n.d.) |
| Y.A.Kogevnikov "Samotcvetnie tropi" |
| Trunilina et al. (2022) |
| Patyk-Kara et al. (2008) |
| USGS Open File Report 2005-1252 p87 |
| Pavel.M. Kartashov (n.d.) |
| Kapustin Yu.L. (1989) |
| |
Slovakia | |
| KodΔra (1986) |
| KodΔra (1986) |
Sweden | |
| |
Ukraine | |
| Kievlenko et al. (2003) |
| Liventseva (n.d.) |
USA | |
| Anthony et al. (1995) |
| Galbraith (1959) +3 other references |
Anthony et al. (1995) | |
| Troxel et al. (1962) +3 other references |
| Murdoch (1966) |
| Hewett (1953) +2 other references |
| Foord et al. (1989) |
| Rudy Bolona specimen |
Eckel et al. (1997) | |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Dean Allum collection |
Eckel et al. (1997) | |
| Eckel et al. (1997) |
Eckel et al. (1997) | |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
Meeves et al. (1966) | |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
Jim Hall | |
Eckel et al. (1997) | |
Simmons et al. (1980) | |
Eckel et al. (1997) | |
Eckel et al. (1997) | |
Eckel et al. (1997) | |
Eckel et al. (1997) | |
| Rudy Bolona |
Rudy BoloΓ±a identification and ... | |
Rhiana E. Henry et al. (2016) | |
| Rudy Bologna |
| Eckel et al. (1997) |
Eckel et al. (1997) | |
| Eckel et al. (1997) |
| Rudy Bolona collection |
| Januzzi et al. (1976) |
| Januzzi et al. (1976) |
| Earle C. Sullivan Collection specimen ... +1 other reference |
| Cameron et al (1954) +1 other reference |
| Januzzi et al. (1976) |
| In the collection of Kevin Czaja. |
| Schooner (1958) +1 other reference |
Schooner (1958) +1 other reference | |
Schooner (1958) +1 other reference | |
| Shelton (1967) |
| Schooner (1958) +1 other reference |
| Januzzi et al. (1976) |
Ralph Lieser of Pappyβs Beryl Shop +2 other references | |
| Schooner (1955) |
Januzzi et al. (1976) | |
Januzzi et al. (1976) | |
Rocks & Minerals (1970) | |
| Anderson |
| Cliff Trebilcock |
| Gleba (2008) |
Knowlton (1867) | |
| McKinstry (1921) |
| P. Cristofono collection |
| - (1917) |
| Richmond (1936) |
| Bearss (1984) |
| P Cristofono collection |
| USGS Prof Paper 353 +2 other references |
| Rocks & Min.:64:504. +1 other reference |
| Jeremy Zolan Collection +1 other reference |
| NMBMMR Bull 83 Mineral Deposits of ... |
Northrop et al. (1996) | |
| Northrop et al. (1996) |
Northrop et al. (1996) | |
Northrop et al. (1996) | |
| Northrop et al. (1996) |
| Jensen (1978) |
| Manchester (1931) |
Manchester (1931) | |
Manchester (1931) | |
Rocks & Min.: 6:117 +2 other references | |
| Dana 6:1074. |
Genth +1 other reference | |
U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System (Mas/Mils) | |
| Wilson et al. (1978) |
| Wilson et al. (1978) |
| Rocks & Min.: 60: 91. |
| E.WM.Heinrich |
| www.johnbetts-fineminerals.com |
| Smithsonian Institution Mineral ... |
| |
Wilson et al. (1978) | |
| U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System (Mas/Mils) |
| Rocks and Minerals (1985) |
| Samuel G. Gordon (1922) |
| Miller (1972) |
| Crook (1977) +1 other reference |
| Landes (1932) |
| Self-collected by Franklin Roberts. |
Economic Geology +5 other references | |
| Bullock (1981) |
| AmMin 3:27-28 (1918) |
| Huntting (1957) +1 other reference |
Davis Quarry, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada