Kinoite

2+1⁄2LusterVitreousDiaphaneityTransparentSpecific gravity3.13 – 3.19Density3.13 – 3.19Optical propertiesBiaxial (−)Refractive indexnα = 1.638 nβ = 1.665 nγ = 1.676Birefringenceδ = 0.038PleochroismStrong2V angleMeasured: 68° , calculated: 64°Dispersionrelatively weak

Kinoite (Ca2Cu2Si3O8(OH)4[2][3] or Ca2Cu2Si3O10 · 2 H2O[4]) is a light blue copper silicate mineral. It is somewhat scarce. It has a monoclinic crystal system, vitreous luster, and is transparent to translucent. It can be found in the Santa Rita Mountains, the Christmas Mine at Christmas, Arizona and a few other copper mines. Kinoite is popular with mineral collectors. Kinoite was named upon its discovery in 1970 after the pioneer Jesuit missionary Padre Eusebio Kino who worked in Arizona, Sonora and Baja California.

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ Handbook of Mineralogy
  3. ^ Kinoite at Webmineral
  4. ^ Kinoite at Mindat.org


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