Any sedimentary rock that forms, as sediments settle out of a solution, is called a chemical sedimentary rock. Sediments can settle out of a solution either by the liquid in the solution evaporating, or by too much of the sediment dissolving in the solution (called supersaturation).
A lozenge (â), often referred to as a diamond, is a form of rhombus. The definition of lozenge is not strictly fixed, and it is sometimes used simply as a synonym (from the French losange) for rhombus. Most often, though, lozenge refers to a thin rhombusâa rhombus with acute angles of less than 45Â°.
Baguette Cut A thin, long gemstone normally cut with just 14 or 18 facets. Baguette A gemstone (usually a diamond or an emerald) cut so that the table is in the shape of a long, narrow rectangle, bordered by four facets each step cut in the shape of an isosceles trapezoid. The name is derived from the French baguette (a long loaf of bread). Baguette: A stone cut with a long rectangular table and a stepped facet pattern. Bandeau: A narrow decorative band encircling the forehead.