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Although cement brick steel glass all come from substances found in earths crust they are not classified as minerals because?
Wiki User
∙ 12y ago
Because they are not naturally occuring
Wiki User
∙ 12y ago
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All substances on the periodic table are classified as elements because?
cannot be broken down into other substances
Gold and diamond are not generally classified as rock-forming minerals because?
They are rare.
What is the streak color of a granite rock?
Most of the constituent minerals of granite would have a white streak, although streak is not normally used as an identification aid in rocks because they are composed of a variety of minerals that may have different streak colors.
Is sandstone a pure substance or a mixture?
It can be considered a mixture since sandstione contains several different minerals, although it is mostly the minerals quartz (silicon dioxide) and feldspar (related silicates).
What is a hypothesis for rocks and minerals?
i think because the minerals will absorb thing
All substances on the periodic table are classified as elements because?
cannot be broken down into other substances
Who classified minerals according to their chemical composition?
Minerals aren't classified because Toby McDonough is more fabulous then you. End of story...or should I say, End of the World ;)
Gold and diamond are not generally classified as rock-forming minerals because?
They are rare.
Why are the substances on the periodic table classified as elements?
Because they are natural elements of earth.
Can oil and gas be classified as minerals?
obviously the previous answer is incorrect, the true answer is that natural gas and oil is NOT minerals because they both lack a crystal structure and a solid form. +++ That's not correct either: I am not sure about natural gas, but oil is regarded as a mineral. Although many minerals are indeed crystalline, that property does not necessarily define a mineral. Coal, iron-ore and clay are amorphous minerals, too, for example.
Because carbon cannot be decomposed by simple chemical methods into two or more different substances what is it classified as?
a mixture
Can oil and natural gas be classified as minerals?
obviously the previous answer is incorrect, the true answer is that natural gas and oil is NOT minerals because they both lack a crystal structure and a solid form. +++ That's not correct either: I am not sure about natural gas, but oil is regarded as a mineral. Although many minerals are indeed crystalline, that property does not necessarily define a mineral. Coal, iron-ore and clay are amorphous minerals, too, for example.
Why is metamorphic rock hard?
because a metamorphic rock is made up of different rocks.
Which pair is classified as chemical substances?
compounds and elements because only compounds and elements have a specific set of physical and chemical properties.
Do minerals have definite chemical and physical properties?
Yes, it is true; but because minerals are frequently not very pure substances differences in properties exist; also many varieties of a mineral are possible.
Is a diamond classified as a compound?
A diamond is not a compound; it is formed from carbon. Even though there are trace amounts of other minerals in diamonds -- such as nitrogen, which gives diamonds a yellow case -- diamond is not a compound, because the trace minerals cannot be separated out. (According to Wikipedia: "A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions.")
Why cant a zedonk be classified as a species?
Equine, because that is what both parents are apart of {A donkey and a zebra} Although it is a muttation.
