Sentence examples for lustre colour from inspiring English sources

Other physical properties of minerals that aid in identification are crystal form, cleavage type, fracture, streak, lustre, colour, specific gravity, and density.

Because it is the surface of a metal that people see and that reacts with the environment around it, special effort is sometimes made to add lustre, colour, or texture to a surface.

As the enamel gradually cools, it crystallizes and, when smoothed, takes on greater lustre and colour.

Pottery from across the Renaissance Mediterranean world was often decorated with an iridescent metallic glaze called lustre, the colour and sheen of which is a down to nanoparticles of copper or silver.

They are similar in colour, lustre, and hardness to the amphiboles but have slightly higher densities owing to the absence of hydroxyls.

The amphiboles and pyroxenes share the same cations and have many similar crystallographic, chemical, and physical properties: the colour, lustre, and hardness of analogous species are alike.

Profitability of the P. maxima industry is driven primarily by the grading of the five pearl quality traits: shape, size, colour, lustre and surface complexion.

By refrigerating these small creatures, attaching them to silk thread when they conk out and then weighing them down in huge tanks of water, James has photographed them in all their splendour ("the colour bleaches out in daylight") so that the velvety lustre of their wings becomes vivid.

Furthermore, various lustre or gloss of skin also manifests different states of diseases.

Most minerals that have a metallic lustre vary little in colour, but nonmetallic minerals can demonstrate wide variance.

A few minerals with nonmetallic lustre display a constant colour that can be used as a truly diagnostic property.