# Ardaite
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> Markdown URL: https://mediated.wiki/source/Ardaite.md
> Source: https://en.wikipedia.org/wiki/Ardaite
> Source revision: 1340577231
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{{Short description|Very rare sulfosalt mineral}}
{{Infobox mineral
| name = Ardaite
| category = [Sulfosalt minerals](/source/Sulfosalt_minerals), [Lead minerals](/source/%3ACategory%3ALead_minerals)
| image = Ardaite in Galenite Madjarovo ore deposit.jpg
| caption = Ardaite associated with [galena](/source/galena), Madjarovo polymetallic ore deposit, [National Museum of Natural History, Bulgaria](/source/National_Museum_of_Natural_History_(Bulgaria))
| formula = Pb19Sb13S35Cl7
|IMAsymbol=Ada[{{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 =
| dana = 02.15.01.01
| strunz = 2.LB.30 (10 ed)
2/E.19-20 (8 ed)
| system = [Monoclinic](/source/Monoclinic)
Unknown space group
| color = Greenish gray or bluish green
| habit =
| twinning =
| cleavage =
| fracture =
| tenacity =
| mohs = 2.5-3
| luster = Metallic
| polish =
| refractive =
| opticalprop =
| birefringence =
| dispersion =
| pleochroism = Weak
| fluorescence=
| absorption =
| streak =
| gravity =
| density = 6.44
| melt =
| fusibility =
| diagnostic =
| solubility =
| diaphaneity =
| other =
| references = {{citation |url=http://rruff.geo.arizona.edu/doclib/mm/vol46/MM46_357.pdf |last1= Breskovska |first1= V. V. |first2= N. N. |last2= Mozgova |first3= N. S. |last3= Bortnikov |first4= A. I. |last4 =Gorshkov |first5= A. I.|last5= Tzepin |author1-link= Vesselina Breskovska|year= 1982 |title= Ardaite, a new lead-antimony chlorsulphosalt |journal= Mineral. Mag. |volume= 46 |issue= 340 |pages= 357–361|doi= 10.1180/minmag.1982.046.340.10 |bibcode= 1982MinM...46..357B |s2cid= 128756669 }}
}}
'''Ardaite''' is a very rare [sulfosalt mineral](/source/sulfosalt_mineral) with chemical formula Pb19Sb13S35Cl7 in the [monoclinic](/source/monoclinic) [crystal system](/source/crystal_system),[{{cite web |url= http://www.mindat.org/min-320.html |publisher=mindat.org |title= Information page for Ardaite}}][{{cite web |url= http://webmineral.com/data/Ardaite.shtml |publisher = webmineral.com |title= Information page for Ardaite}}] named after the [Arda River](/source/Arda_River_(Maritsa)), which passes through the type locality.[{{cite web |url= http://www.handbookofmineralogy.org/pdfs/ardaite.pdf |publisher= Handbook of Mineralogy |title= Information page for Ardaite}}]
== Discovery and occurrence==
It was discovered in 1978 and approved by the [International Mineralogical Association](/source/International_Mineralogical_Association) in 1980.[{{citation |url=http://rruff.geo.arizona.edu/doclib/mm/vol46/MM46_357.pdf |last1= Breskovska |first1= V. V. |first2= N. N. |last2= Mozgova |first3= N. S. |last3= Bortnikov |first4= A. I. |last4 =Gorshkov |first5= A. I.|last5= Tzepin |year= 1982 |title= Ardaite, a new lead-antimony chlorsulphosalt |journal= Mineral. Mag. |volume= 46 |issue= 340 |pages= 357–361|doi= 10.1180/minmag.1982.046.340.10 |bibcode= 1982MinM...46..357B |s2cid= 128756669 }}][{{ citation |url=http://rruff.geo.arizona.edu/doclib/cm/vol19/CM19_419.pdf |first1= E.A.J.|last1= Burke |first2= C. |last2= Kieft |first3= M.A. |last3= Zakrzewski |year=1981 |title= The Second Occurrence of Ardaite |journal= Canadian Mineralogist |volume= 19 |pages= 419–422 |accessdate= 3 May 2018}}][{{citation |url=http://www.minsocam.org/ammin/AM68/AM68_642.pdf |first1=Pete |last1=Dunn |last2=Fleischer |first2=Michael |author2-link= Michael Fleischer (mineralogist)|year=1983 |title=New Mineral Names |journal=American Mineralogist|volume=68|page=643}}] It was the second well-defined natural chlorosulfosalt, after {{ill|dadsonite|qid=Q3700777}}.[{{citation |url= http://rruff.geo.arizona.edu/doclib/am/vol91/AM91_21.pdf |first1= Michael |last1= Zelenski |first2= Tonci Balic|last2= Zunic |first3= Luca |last3= Bindi |first4= Anna |last4= Caravelli |first5= Emil |last5 =Makovicky |first6= Daniela |last6= Pinto |first7= Filippo |last7= Vurro |year= 2006 |title= First Occurrence of Iodine in Natural Sulfosalts: The Case of Mutnovscite |journal= American Mineralogist | volume= 91 |pages= 21–28|doi= 10.2138/am.2006.1870 |s2cid= 55370927 }}]
[[File:Paragenesis Ardaite & Galena.JPG|thumb|left|[Paragenesis](/source/Paragenesis) of ardaite and [galena](/source/galena), Madjarovo ore deposit, [Bulgaria](/source/Bulgaria), at the [National Museum of Natural History, Bulgaria](/source/National_Museum_of_Natural_History%2C_Bulgaria)]]
Greenish gray or bluish green in color, its [luster](/source/lustre_(mineralogy)) is metallic. Ardaite occurs as 50 [μm](/source/Micrometre) fine-grained aggregates of [acicular](/source/Acicular_(crystal_habit)) crystals associated with [galena](/source/galena), pyrostilpnite, [anglesite](/source/anglesite), [nadorite](/source/nadorite), and [chlorine](/source/chlorine)-bearing [robinsonite](/source/robinsonite) and [semseyite](/source/semseyite), in the Madjarovo polymetallic ore deposit in Bulgaria. Ardaite has a hardness of 2.5 to 3 on [Mohs scale](/source/Mohs_hardness) and a density of approximately 6.44.[{{cite web |url= http://www.nmnhs.com/exhibitions-hall-1-mineralogy-en.html |title=Collection of Minerals |publisher= National Natural History Museum, Sofia, [Bulgaria](/source/Bulgaria)}}][{{cite web |url= http://www.mindat.org/loc-460.html |title= Madjarovo deposit |publisher= mindat.com}}] Later its occurrence was proved in the Gruvåsen deposit, near [Filipstad](/source/Filipstad), [Bergslagen](/source/Bergslagen), [Sweden](/source/Sweden).