Extremely large (apparently one of the largest known in nature) rhombododecahedral crystal of mustard-brown Kazakovite in feldspar-natrolite brecciated rock with grains of Kazakovite up to 1 cm. Associating minerals are white films of thermonatrite and minor red villiaumite, replacing kazakovite, also vuonnemite, phosinaite and minor aegirine (all are invisible on the photo). Specimen size is 5x4x2 cm. Collected in 2008. Pavel M. Kartashov collection and photo.
This Photo was Mindat.org Photo of the Day - 18th Sep 2009
This Photo was Mindat.org Photo of the Day - 18th Sep 2009
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