Nonmetallic: A material which is not composed of metal.
Non-precious: Any metal that is not considered to be a precious metal or any gemstone that is not considered to be a precious gemstone.
Nonmetallic
An object or material which is not composed of metal.
Non-precious Metal ...
Slag is a nonmetallic product resulting from the mutual dissolution of flux and nonmetallic impurities during smelting. A silica rich slag is a smelting slag that contains a relatively high level of silica.
Sill ...
Oxygen: A nonmetallic element that is normally a colorless, odorless, tasteless gas that constitutes 28 percent of the Earth's atmosphere. Oxygen combines with many other elements easily.
A nonmetallic element which is only found as a compound with other elements in nature. When artificially extracted, silicon appears as a dark brown amorphous powder, or as a dark crystalline substance with a metallic luster.
The native elements are divided into metallic, semimetallic, and nonmetallic subgroups. Metals tend to be dense and malleable substances which possess a characteristic metallic luster and conduct electricity well.
An abundant nonmetallic, tetravalent element, carbon has several allotropic forms including Diamond. Carbon occurs in all organic life and is the most basic element in organic chemistry.
Boron: A soft, brown, nonmetallic element. It is extracted with some difficulty and in its reduced state appears as a substance of a deep olive color, in a semi-metallic form, ...
If a mineral does not look like a metal and/or lets even a little light through (even just around the edges), then it is said to have a nonmetallic luster.
A mixture made from the combination of two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten.
Carbon: The sixth most common element in the universe it is a nonmetallic, tetravalent element, carbon has several allotropic forms such as diamonds and graphite, the hardest and one of the softest elements.
Ceramic - pertaining to products manufactured from inorganic, nonmetallic substances, which are subjected to a high temperature during manufacture or use.
Carbon is a chemical element in the periodic table that has the symbol C and atomic number 6. An abundant nonmetallic, tetravalent element, carbon has several allotropic forms: ...
Nodular - A habit displaying small, irregular lumps.
Nonmetallic - Having a luster not like metal.
Nugget - A rounded or irregular lump of a mineral, usually a native metal. (Gold, Platinum) ...
in any assay for quality of a karat gold industry product include springs, posts, and separable backs of lapel buttons, posts and nuts for attaching interchangeable ornaments, metallic parts completely and permanently encased in a nonmetallic ...
non-metallic elements The nonmetallic elements are minerals that belong in the native elements group and don't exhibit any metallic properties (except for Graphite, which has a metallic luster). They are light in weight and can be transparent.
 See also: Metal, Metallic, Mineral, Silver, Shape
  
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