Jagoite
{{Infobox mineral|boxwidth=|boxtextcolor=black|boxbgcolor=yellow|name=Jagoite|image=|imagesize=|caption=|formula=Pb2.4Na0.2Ca0.1Fe3+0.8Mg0.2Si3.1O10Cl0.8(OH)0.2|IMAsymbol=Jg|system=Hexagonal|color=Yellow-green|cleavage=Perfect|fracture=Flexible|mohs=3|pleochroism=none| opticalprop = Uniaxial (−) | refractive = nω = 2.000 nε = 1.970 | birefringence =0.030|dispersion=|streak=Yellow|gravity=5.43|density=5.43 g/cm3|diagnostic=|references={{cite web | url=https://www.mindat.org/min-2064.html | title=Jagoite }}|lustre=Vitreous}}
Jagoite is a hexagonal-ditrigonal, dipyramidal, yellow-green lead-silicate mineral consisting of calcium, chlorine, hydrogen, iron, lead, magnesium, oxygen, silicon, and sodium. Its discovery was first published in 1957.{{Cite book |last=Blix, Gabrielson, Wickman |title=Jagoite, a new lead-silicate mineral from Långban in Sweden |publisher=Arkiv för Mineralogi och Geologi |year=1958 |edition=2 |location=Stockholm |pages=315–317}}
Etymology
It is named after John B. Jago Trelawney, an American mineral collector.{{Cite web |title=Jagoite Mineral Data |url=https://webmineral.com/data/Jagoite.shtml |access-date=2025-03-12 |website=webmineral.com}}
Properties
It is said to have a vitreous (glass-like) lustre.{{Cite web |title=Jagoite |url=https://www.mindat.org/min-2064.html |access-date=2025-03-12 |website=www.mindat.org}}
Jagoite is composed of tiny yellow crystals that span less than 0.2mm.{{Cite web |last=Minerals |first=Dakota Matrix |title=Jagoite mineral information and data |url=https://www.dakotamatrix.com/mineralpedia/6716/jagoite |access-date=2025-03-12 |website=www.dakotamatrix.com |language=en}}
Distribution
This rare mineral is located in Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden, found inside hematite ore. It is also associated with Melanotekite and Quartz.{{Cite journal |title=Jagoite |url=https://www.handbookofmineralogy.org/pdfs/jagoite.pdf |journal=Handbook of Mineralogy}}{{Cite web |title=ATHENA MINERAL: Mineral Data; Pierre Perroud |url=https://athena.unige.ch/minfich?id=JAGOITE |access-date=2025-03-12 |website=athena.unige.ch}}
Media appearances
It is featured in Stardew Valley as a minor item obtained from geodes.