Minerals that have relatively high but lesser degrees of luster are called sub-adamantine. How to use luster as an identification mark. It's a shining effect, and used as a metaphor it describes an image of something of value, real or imagined. The luster of the holiday lights shone brightly on the freshly fallen snow. See the full list.. Some examples of different types of luster are metallic and greasy. Luster. Luster is only a useful form of mineral identification when the specimen in question displays a unique luster, such as waxy, greasy, pearly, etc. Example #1. The hairstylist promised that the conditioner would add luster to the client’s hair. Minerals that are opaque and shiny, such as pyrite, have a metallic luster. In technical terms, luster is also another word for a shining effect, usually a superlative rather than an actual description. One simple way to classify luster is based on whether the mineral is metallic or non-metallic. The luster of a single fiber is determined by the total visual appearance of these reflections from the fiber surface. However, the gem’s condition may affect its luster. Diamonds have brilliant or adamantine luster; quartz have vitreous luster, which has the luster of broken glass. Factor affecting on luster: Luster of the fabric is the most vital point. Luster is literally the gleam of gold. Non-metallic luster in a mineral can range from glassy, which is called vitreous, to dull. Luster describes the reflection of light off a mineral’s surface. In order to restore its luster, the man rubbed the brassy finish of the old tool. Luster is the shine that a rock has, and the way the light hits it. See more. When we meet her, she’s become infatuated with Eric, a … Minerals of metallic luster are opaque to light, even on thin edges. Luster. For example, the pyrite mineral shown in the left photo has mostly a shiny, metallic luster. An example of this would be a garnet. It is in the eyes of the viewer to determine what luster a particular specimen exhibits. The luster of a mineral which does not quite possess a metallic luster is termed submetallic; hematite provides an example of submetallic luster. Example of Luster. Mineralogists have special terms to describe luster. Examples of minerals which exhibit metallic luster are native copper, gold, and silver, galena, pyrite, and chalcopyrite. Mrs. Hilbery, in virtue of her position as the only child of the poet, was spiritually the head of the family, and Katharine, her daughter, had some superior rank among all the cousins and connections, the more so because she was an only child. The fascination of gold's luster is the analogy. luster Sentence Examples. By contrast, minerals with non-metallic luster are generally lighter in color and show some degree of transparency or translucency, even though this may be on a thin edge. For example, polishing can transform jet, with a dull or waxy base luster, to vitreous. Examples of Luster in a sentence. For many today, the captivating beauty and exquisite luster of pearls still evoke feelings of mystery and magic as the allure of these exquisite gems is as timeless as the treasures themselves. arabesque design in luster on a white background. Specimens with a vitreous luster cannot be distinguished from one another, nor can minerals with a metallic luster. [ “Luster” was one of our most anticipated books of the month. Gemstone luster generally refers to a gem’s base appearance. Silk fibers has a high luster and cotton has low luster. Types. A gemstone can have a polish luster (its appearance when polished) that varies greatly from its base luster. Luster definition, the state or quality of shining by reflecting light; glitter, sparkle, sheen, or gloss: the luster of satin. It is directly proportional to the amount of light reflected by a fiber. Examples of Luster.