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Formula: CaBiO(CO3)F
Anhydrous carbonate, bismuth-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 5.80 measured, 5.85 calculated
Colour: Brown, brownish yellow, lemon-yellow
Environments
Pegmatites
Hydrothermal environments
Localities
At the type locality, the Barbora adit, Knöttel area, Krupka, Teplice District, Ústí nad Labem Region, Czech
Republic, kettnerite occurs as small brown, brownish-yellow, to lemon-yellow plates in cavities in a
quartz vein cutting
pegmatitic
K-feldspar. Associated minerals are
fluorite, bismuth,
bismuthinite, hematite and
altered topaz
(AM 42.121).
The kettnerite occurs as 0.2 to 0.3 mm plates on quartz or
fluorite
(AM 43.385).
Kettnerite from the Barbora Adit - Image
At the Blue Bell Mine, Zzyzx, Soda Mountains, Silver Lake Mining District, San Bernardino County, California, USA,
kettnerite is associated with perite,
hemimorphite,
bromian chlorargyrite,
fluorite, chrysocolla and
quartz
(HOM).
Kettnerite from the Blue Bell Mine -
Image
At the Tintic Mining District, Juab County, Utah, USA, kettnerite seems to occur in most of the mines in the
district that have mixite, and the two usually occur together in specimens
that contain either of the two minerals. Kettnerite has been found at the Northern Spy, North Star, Carisa,
Ajax, Gold Chain and Centennial Eureka mines. Most commonly it occurs as pearly white to white-yellow spheres to
0.2 mm, and groups of these spheres may cover areas up to a few square millimeters. At the North Star mine, slightly
larger spheres up to 0.3 mm composed of visible pale blue-green crystals of kettnerite have been found with
preisingerite on a quartz and
baryte matrix
(MinRec 55.2.208-209).
Kettnerite from Tintic - Image
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