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Mar 25, 2019· The rule that minerals must be inorganic may be the strictest one. The substances that make up coal, for instance, are different kinds of hydrocarbon compounds derived from cell walls, wood, pollen, and so are called macerals instead of minerals. If coal is squeezed hard enough for long enough, the carbon sheds all its other elements and becomes graphite.
Minerals are generally defined as * naturally occurring (we''re not interested in plastic, brass, etc.) * inorganic (otherwise we''d be drowning in organic chemistry) * chemical compounds (no mechanical mixtures) Like all definitions in science, the...
A natural snowflake would be considered to be a mineral because it forms naturally in Earth''s atmosphere. However, an ice cube made in a refrigerator would not be considered a mineral because it was produced by the actions of people. So, ice is a mineral when it forms naturally, but it is not a mineral when people play a role in producing it.
It must be naturally occurring. 2. It must be inorganic in origin. 3. It must be solid. 4. It must have a definite chemical composition that only varies within certain well defined limits. 5. The atoms from which it is made must be arranged in an orderly manner. Coal fails criteria 2, 4, and 5. Therefore, it is not a mineral.
So yes, coal is classified as an organic sedimentary rock, and yes, rocks are supposed to be made of minerals and minerals can''t be organic. All true, but. then there''s coal. It looks like a rock and feels like a rock and is found in layers between other types of rocks – it sure sounds like a rock to me.
Chapter 4 Minerals study guide by MerandaSJE includes 20 questions covering vocabulary, terms and more. Quizlet flashcards, activities and games help you improve your grades. ... Why is coal not classified as a mineral? it comes from the remains of plants and animals. What is a crystal.
Jan 22, 2018· Coal is made from organic materials. Coal is classed as an organic sedimentary rock and rocks are made from inorganic (not from living) material such as minerals. Coal is made from decomposed plants that are organic (were living)
Jul 08, 2011· Why is Productivity important? July 8, 2011, shiela, Leave a comment. Why is productivity important? Productivity means to become efficient, effective, and abundant. It means producing more goods having the same resources or same amount of goods using lesser resources. It means producing new wealth or more wealth without additional cost.
Jul 08, 2011· Why is Coal not classified as a Mineral? Coal is not a mineral because it does not qualify to be one. A mineral is made of rocks. It is nonliving and made up of atoms of elements. Coals on the other hand are carbonbased and came from fossilized plants.
Why is coal not classified as a mineral ... product from the decay of ancient plant and animal remains on the ocean floor and is considered a natural resource but not a mineral. Coal deposits are ...
Anything that has the structure of crystalline is called a mineral. Carbon is the single atom, diamond is a crystalline of carbon atoms bonded with a covalent bond to build a Tetrahedron unit cell to form its crystalline lattice (Octahedron, Cubic...
Why Is Coal Considered a NonRenewable Resource? Coal is considered a nonrenewable resource because the earth cannot replenish it. Geologic heat and pressure work on organic decomposing materials to create coal.
The members of the (unofficial) Mineraloids Class are often mistaken for minerals and are sometimes classified as minerals, but lack the necessary crystalline structure to be truly classified as such. Pearl, jet and amber are in addition the products of organic process that further remove them from full mineral .
Coal is NOT classified as a mineral because. it comes from the remains of plants and animals. After miners remove ore from a mine, what process removes the metal from the ore? smealting. A rare, colorful mineral with a brilliant luster and a hardness of 8 or 9 on the .
Why is coal not classified as a mineral? Minerals: Minerals are naturallyformed substances that have a specific chemical makeup. They are created when elements combine. Minerals are nonorganic ...
What is a mineral? The quiz! By now you should understand what a mineral is. Look at the objects below and remember what defines a mineral. Once again, a mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an ordered atomic arrangement!
Is it a mineral? Coal is a classified as a sedimentary rock but is not a mineral. Natural Processes. Minerals are made by natural processes, those that occur in or on Earth. A diamond created deep in Earth''s crust is a mineral. Is a diamond created in a laboratory by placing carbon under high pressures a mineral?
Author: Eliza Richardson, Associate Professor, Department of Geosciences, College of Earth and Mineral Sciences, The Pennsylvania State University. This courseware module is part of Penn State''s College of Earth and Mineral Sciences'' OER Initiative. Except where otherwise noted, content on this site is licensed under a Creative Commons AttributionNonCommercialShareAlike International ...
Oct 16, 2019· Coal, one of the most important primary fossil fuels, a solid carbonrich material, usually brown or black, that most often occurs in stratified sedimentary deposits, which may later be subjected to high temperatures and pressures during mountain building, .
This classifies it as an organic compound and so is not a mineral. Coal on the other hand also comes from plants (organic) and is generally considered a mineral. There are also marine animals that make their shells from calcite (calcium carbonate). Calcite is a mineral but since it is secreted by animals to form shells it is inorganic.
Coal is a combustible black or brownishblack sedimentary rock, formed as rock strata called coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years.
Aug 20, 2019· The plant remains that make up coal have been "pressure cooked" for millions of years. Therefore, it is not accurate to say that they have been preserved. Minerals are inorganic, naturallyoccurring solids. While coal is a naturallyoccurring solid, it is composed of organic plant material. Rocks are, of course, made up of minerals.
Coal is NOT classified as a mineral because? ... No, coal is not a mineral because a mineral has to be inorganic meaning that it can not be made by a life process. ... Read More. 1.
In earth materials, it is the "mineraloids," things that look and behave like minerals, and are found with minerals, but are not themselves minerals. Coal and amber are two good examples. Organic, as used in the definition of minerals, is usually interpreted to mean hydrogen and carbon together.
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