Please tell me the lusture of petroleum
Answers
Explanation:
Materials can be grouped as lustrous and non-lustrous on the basis of lustre/shine possessed by them. Lustrous materials are those that have a shine on them. Due to this property metals are widely used for making jewellery. Example: Gold, silver and most metals are lustrous in nature.
Answer:
Lustre (British English) or luster (American English; see spelling differences) is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the Latin lux, meaning "light", and generally implies radiance, gloss, or brilliance.
A range of terms are used to describe lustre, such as earthy, metallic, greasy, and silky. Similarly, the term vitreous (derived from the Latin for glass, vitrum) refers to a glassy lustre. A list of these terms is given below.
Lustre varies over a wide continuum, and so there are no rigid boundaries between the different types of lustre. (For this reason, different sources can often describe the same mineral differently. This ambiguity is further complicated by lustre's ability to vary widely within a particular mineral species.) The terms are frequently combined to describe intermediate types of lustre (for example, a "vitreous greasy" lustre).
Explanation:
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