Infrared absorption bandscharacteristic of vanadium-oxygen vibra-tional modes in various
compound classes—eg, deca-, hexa-, meta-, pyro-, and orthovanadates, vanadyl salts …

… The stacking of the layers is similar to that in the metahewettite. A structural model is
proposed, where the Ca 2+ ions occupy octahedral sites in the interlayer space. The …

… Spherules of velvet-brown metahewettite (0.5 mm in diameter) consist of radial aggregates
of … Commonly, botryoidal aggregates of metahewettite occur on fluellite crystals, and this is, …

… The new calcium vanadates hewettite and metahewettite from this mine were named in
his honor. …

The rare phosphate-nevadaite has been found at Kara-Chagyr area (Batken region, Kyrgyzstan)
in zone of alteration of vanadium-bearing ‘black shales’. The mineral occurs as blue …

… Metahewettite is the principal vanadium mineral in the oxidized zone, but it also occurs
sparsely as small nodules and fillings of microfractures in unweathered strata. In fresh rock, bluish…

… Among the compounds studied were the polyvanadates hummerite, metahewettite and
pascoite. These authors stated that these minerals are the decavanadates and can be …

Eckel's Minerals of Colorado (1997) mentions the minerals rossite and metarossite, stating
that they were discovered in the" Bull Pen Canyon area. The type locality for these species is …