Underground mine for very pure calcite which was used by a toothpaste company. Interesting species are in high-temperature, boron-bearing, very low-Fe calc-silicate skarn between calcite orebody and igneous intrusives. Collecting strictly prohibited to everyone except researchers associated with Okayama University.
References:
- Mineralogical Journal of Japan (1977): 8, 374-381.
- Journal of the Mineralogical Society of Japan (1980): 14: 314-322.
- American Mineralogist (1986): 71: 1234-1239.
- Mineralogical Magazine (1995): 59: 549-552.
- Mineralogical Record (1996): 27: 303.
- American Mineralogist (1999): 84: 686.
- Lapis 2002(11), 12.
- Tanaka, T., Minakawa, T., Kusachi, I. and Tanabe, M. (2009): Bi-bearing and REE-free zálesíite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 104, 164-167.
Mineral List:81 entries listed. 75 valid minerals. 11 type localities (valid minerals). 1 erroneous literature entry.
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