No. Dull is a descriptive adjective .
i think that it is dull
dull luster looks somewhat metallic, but it isn't quite as reflective.
Hematite is typically shiny when it is polished or cut, giving it a metallic luster. However, in its natural form, hematite can appear dull or metallic depending on the surface finish and impurities present.
because they are dull objectsbecause they are dull objectsBlood comes out of the elevator doors
Luster is categorized as metallic or non-metallic. Metallic luster is highly reflective, like chrome. Non-metallic is further divided by names such as dull, glassy, adamantine, waxy, silky, pearly, and greasy.
Hornblende does not have a metallic luster. It typically has a non-metallic, vitreous to dull luster depending on its composition and crystal structure.
Galena is a metallic mineral that has a bright, shiny metallic luster when freshly broken. Over time, the surface can tarnish and become dull.
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Promethium is a rare earth metal that is usually found in a dull gray color. However, when freshly cut or newly isolated, it can have a shiny appearance due to its metallic luster.
Germanium has a shiny metallic luster when freshly cut, but it quickly oxidizes in air, producing a dull gray appearance.
Arsenic is shiny,gray,brittle metallic looking solid.The dull coating is made of arsenic oxides.
Metalloids typically have a dull or metallic sheen, as they possess both metallic and non-metallic properties. They are not as shiny as metals like gold or silver, but they can exhibit metallic luster to some extent.