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Jamborite

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Jamborite
General
CategoryMinerals
FormulaNi2+1-xCo3+x(OH)2-x(SO4)x · nH2O
IMA symbolJbr
Crystal systemHexagonal
Identification
ColorGreen
CleavagePerfect
Specific gravity2.67
Density2.67 g/cm3
Optical propertiesUniaxial (−)
Refractive indexnω = 1.607 nε = 1.602
Birefringence0.0050
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

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It is named after John Leslie Jambor, a Canadian geologist.[2]

Properties

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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

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This mineral has been found in the Northern Apennines of Italy, Spain and Wales.[5][6]

Media appearances

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It is featured in the Stardew Valley video game as a minor item obtained from geodes.

See also

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References

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  1. ^ "General Jamborite Information".
  2. ^ a b 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.
  3. ^ "Jamborite". www.mindat.org. Retrieved 2025-04-27.
  4. ^ 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.
  5. ^ "Mineral Database". Museum Wales (in Welsh). Retrieved 2025-04-27.
  6. ^ "Jamborite - RRUFF Database: Raman, X-ray, Infrared, and Chemistry". rruff.info. Retrieved 2025-04-27.