| Jamborite | |
|---|---|
| General | |
| Category | Minerals |
| Formula | Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O |
| IMA symbol | Jbr |
| Crystal system | Hexagonal |
| Identification | |
| Color | Green |
| Cleavage | Perfect |
| Specific gravity | 2.67 |
| Density | 2.67 g/cm3 |
| Optical properties | Uniaxial (−) |
| Refractive index | nω = 1.607 nε = 1.602 |
| Birefringence | 0.0050 |
| References | 1 |
Jamborite is a hexagonal-trigonal, green, mineral consisting of nickel, cobalt, hydroxides and sulphur. Its discovery was first published in 1973.2
Etymology
It is named after John Leslie Jambor, a Canadian geologist.2
Properties
It has a lamellar structure, superficially resembling grass.3
It was formerly believed to be in the hydrotalcite supergroup, but was later disproved.4
Distribution
This mineral has been found in the Northern Apennines of Italy, Spain and Wales.56
Media appearances
It is featured in the Stardew Valley video game as a minor item obtained from geodes.
References
References
- "General Jamborite Information".
- Morandi, N.; Dalrio, G. (1973-10-01). "Jamborite: A New Nickel Hydroxide Mineral From the Northern Apennines, Italy". American Mineralogist. 58 (9–10): 835–839. ISSN 0003-004X.
- "Jamborite". www.mindat.org. Retrieved 2025-04-27.
- Bindi, Luca; Christy, Andrew G.; Mills, Stuart J.; Ciriotti, Marco E.; Bittarello, Erica (September 2015). "New Compositional and Structural Data Validate the Status of Jamborite". The Canadian Mineralogist. 53 (5): 791–802. Bibcode:2015CaMin..53..791B. doi:10.3749/canmin.1400050. hdl:1885/152280. ISSN 0008-4476.
- "Mineral Database". Museum Wales (in Welsh). Retrieved 2025-04-27.
- "Jamborite - RRUFF Database: Raman, X-ray, Infrared, and Chemistry". rruff.info. Retrieved 2025-04-27.