cesbronite

{{Infobox mineral

| name =Cesbronite

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| image = Cesbronite.jpg

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| caption = Emerald green crystal aggregates of cesbronite from Tombstone District, Cochise County, Arizona, USA

| category = Copper-tellurium oxysalt

| formula = Cu3Te6+O4(OH)4

| IMAsymbol=Ces{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA–CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3|pages=291–320|doi=10.1180/mgm.2021.43|bibcode=2021MinM...85..291W|s2cid=235729616|doi-access=free}}

| molweight =

| strunz = 4.JN.15

| dana = 34.7.2.1

| system = Orthorhombic

| class = Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)

| symmetry = Pbcn

| unit cell = a = 8.624, b = 11.878
c = 5.872 [Å], Z = 2

| color = Green

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| cleavage =poor on {010}, good on {021}

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| tenacity =Brittle

| mohs =3

| luster =Subadamantine

| streak =Green

| diaphaneity =Translucent

| gravity =4.45 (measured)

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| opticalprop =Biaxial (+)

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| birefringence =δ = 0.149

| pleochroism =Distinct, various shades of green

| 2V =72o (calculated)

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| fluorescence =None

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| solubility =Soluble in HCl and HNO3. Insoluble in water

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| references ={{ref|1}}{{ref|2}}{{ref|3}}{{ref|4}}[https://www.mineralienatlas.de/lexikon/index.php/MineralData?mineral=Cesbronite Mineralienatlas]

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Cesbronite is a copper-meteatellurate oxysalt mineral with the chemical formula Cu3Te6+O4(OH)4 (IMA 17-C). It is colored green and its crystals are orthorhombic dipyramidal. Cesbronite is rated 3 on the Mohs Scale.[http://webmineral.com/data/Cesbronite.shtml Webmineral entry] It is named after Fabien Cesbron (born 1938), a French mineralogist.{{Cite journal|last=Williams|first=Sidney A.|date=1974|title=Cesbronite, a new copper tellurite from Moctezuma, Sonora|url=http://www.minersoc.org/pages/Archive-MM/Volume_39/39-307-744.pdf|journal=Mineralogical Magazine|volume=39|issue=307|page=744|doi=10.1180/minmag.1974.039.307.02|bibcode=1974MinM...39..744W|s2cid=129501305|access-date=2016-09-20|archive-date=2016-05-27|archive-url=https://web.archive.org/web/20160527123410/http://www.minersoc.org/pages/Archive-MM/Volume_39/39-307-744.pdf|url-status=dead}}

Occurrence

It was first found in the Bambollita ("La Oriental") mine in the Mexican state of Sonora. It also occurs in the Tombstone District of Cochise County, Arizona and the Tintic District of the East Tintic Mountains, Juab County, Utah.[http://www.mindat.org/min-940.html Mindat.org Cesbronite] It is often associated with argentian gold, teineite, carlfriesite, xocomecatlite, utahite, leisingite, jensenite and hematite.{{Cite web|url=http://www.handbookofmineralogy.org/pdfs/cesbronite.pdf|title=Handbook of mineralogy|access-date=2016-09-20}}

See also

References