Kutnohorite, also spelled as Kutnahorite, is a rare carbonate
It is a member of the Dolomite Group and is difficult to distinguish
from Dolomite except that
Kutnohorite has greater density.
material, shown to have the dolomite structure type,
occurs at: Kutná Hora and Chvaletice, Czech Republic.
At Långban, Värmland, Sweden. From near Levane, Tuscany,
Italy. In the USA, at Franklin and Sterling Hill, Ogdensburg,
Sussex Co., New Jersey; in the Sunnyside and Silver
King mines, Silverton district, San Juan Co., Colorado;
in the Longvale quarry, Laytonville, Mendocino Co.,
California; from Bald Knob, Alleghany Co., North Carolina.
At Mont Saint-Hilaire, Quebec, Canada. In the Providencia
district, Zacetecas, Mexico. Fine examples from the
N’Chwaning mine, near Kuruman, South Africa. In Japan,
in the Hoei tin mine, Oita Prefecture, from the Chichibu
mine, Saitama Prefecture, and at the Ryujima mine, 15
km southwest of Matsumo, Nagano Prefecture. From Broken
Hill, New South Wales, Australia.