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 prohibited.
References:
- Mineralogical Journal of Japan (1977): 8, 374-381.
- Journal of the Mineralotgical 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.
