| Jagoite | |
|---|---|
 Image of Jagoite | |
| General | |
| Category | Minerals |
| Formula | Pb2.4Na0.2Ca0.1Fe3+0.8Mg0.2Si3.1O10Cl0.8(OH)0.2 |
| IMA symbol | Jg |
| Crystal system | Hexagonal |
| Identification | |
| Color | Yellow-green |
| Cleavage | Perfect |
| Fracture | Flexible |
| Mohs scale hardness | 3 |
| Lustre | Vitreous |
| Streak | Yellow |
| Specific gravity | 5.43 |
| Density | 5.43 g/cm3 |
| Optical properties | Uniaxial (−) |
| Refractive index | nω = 2.000 nε = 1.970 |
| Birefringence | 0.030 |
| Pleochroism | none |
| References | 1 |
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 1957.2
Etymology
It is named after John B. Jago Trelawney, an American mineral collector.3
Properties
It is said to have a vitreous (glass-like) lustre.4
Jagoite is composed of tiny yellow crystals that span less than 0.2mm.5
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.675
Media appearances
It is featured in Stardew Valley as a minor item obtained from geodes.
References
References
- "Jagoite".
- Blix, Gabrielson, Wickman (1958). Jagoite, a new lead-silicate mineral from Långban in Sweden (2 ed.). Stockholm: Arkiv för Mineralogi och Geologi. pp. 315–317.
{{cite book}}: CS1 maint: multiple names: authors list (link) - "Jagoite Mineral Data". webmineral.com. Retrieved 2025-03-12.
- "Jagoite". www.mindat.org. Retrieved 2025-03-12.
- Minerals, Dakota Matrix. "Jagoite mineral information and data". www.dakotamatrix.com. Retrieved 2025-03-12.
- "Jagoite" (PDF). Handbook of Mineralogy.
- "ATHENA MINERAL: Mineral Data; Pierre Perroud". athena.unige.ch. Retrieved 2025-03-12.