Search for: [Characteristics of the object- texture/facture = "fuzzy spots with a slightly different texture, more stratified, with layers and stripes in various shades of gray\; sometimes these layers, strands or spots seem to have no reflection in the texture\; coloured very dark\-gray\-brown \(10 YR 3\/2\) almost on whole surface\; with very small spots gray\-brown \(10 YR 5\/2\) in size 0.5 x 2 mm\; in the case of backlight observation, in some parts the slurry concentrates in layers up to 1 mm wide, quite heavily concentrated\; concretions \- large, possibly in shape of tablets"]