Brown, earthy to fuzzy (meta)hewettite balls partially coated with a gray gypsum crust. The hydrated calcium vanadate hewettite - CaV₆O₁₆·9H₂O and its dehydrated analog metahewettite - CaV₆O₁₆·3H₂O cannot be differentiated visually, and both may be present. Species identification based on previous dealer label. From an obscure uranium mine for which Mindat has just one mineral specimen image.