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What three tests would you preform to help you identify an unknown mineral?
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One way to help identify a mineral is to rub it against a piece of porcelain tile this procedure tests what?
The test described is called a streak test, and indicates the true color of a mineral as observed in a powdered form.
How are flame tests used in forensic science?
Flame tests are used to help identify substances used in murders
How mineralogist identify and classify materials?
there are a few basic tests to identify a material. hardness, color, lustor, crystal form, cleavage, and streak. I believe this is all of them, but it has been several years. They are classified by the same tests that identify them. For example, diamond is classified as a 10 hardness material (the only 10 hardness material) Glass is 7 hardness.
What mineral is so dense that X-rays cant pass through?
According to biologists, x-ray beams cannot penetrate through bone mineral because it is very strong and dense. Bone mineral tests are performed to measure calcium levels in the bone.
What branch of chemistry carries out tests to identify an unknown substance?
Analytical chemistry is concerned with investigation of the quantitative and/or qualitative characteristics of a given sample. For instance, an analytical chemist may qualitatively determine what the various polycyclic aromatic hydrocarbons in a tar sample are, and may also quantitatively analyze the concentrations of each species in the sample.
Why is size or masss a bad way to identify a mineral?
These are not specific tests.
One way to help identify a mineral is to rub it against a piece of porcelain tile This procedure tests the of the mineral?
That procedure tests the streak of the mineral. Oddly, the streak color of some minerals are different from the mineral's color.
What are the four main tests used to identify a mineral?
streak, hardness, density, luster.
How do I identify unknown materials?
Carrying out various tests such as heating or mixing with other chemicals can help to identify unknown materials. Heating can give different smells and different colors.
Why do you need to know hardness and streak to identify minerals?
Any identifying characteristics help when you are dealing with an unknown mineral. You have to use all of the clues at your disposal to make a proper identification. Streak and hardness are 2 important tests.
Why is it important to identify an unknown substance?
Because the substance could potentially be extremely toxic or harmful. You must never use an unknown substance in experiments without identifying it first, many tests can be undertaken to determine the cation and anion. These tests include the flame test, solubility tests, precipitate reaction tests and conductivity tests. These do vary depending on the unknown substance.
Are some tests better than others for identifying certain minerals?
Yes, you can usually identify the mineral salt by its taste. However, with most minerals one would apply a series of tests, eg hardness, flame test, colour, density, streak, shape in order to identify the mineral.
How do you find the mineral in a rock?
In some rock, it is not possible to visually detect a mineral. Tests must be done to identify the minerals which compose the rock. Such tests would include: reaction to acids, specific gravity, texture, and color.
12 One way to help identify a mineral is to rub it against a piece of porcelain tile This procedure tests the of the mineral?
By rubbing mineral against a piece of porcelain tile, the objective of the test is to observe the hardness of the mineral.
what is forensic drug testing?
Forensic drug testing is to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances. They are Presumptive tests and Confirmatory tests.
Compare and contrast the different simple tests for mineral identification presented in the lesson?
There are several different tests that can help identify minerals. You can use any of them to determine the sample.
How can you identify unknown minerals?
you need to determine; hardness, color, transparency, and how they break. Those 4 combined will identify most minerals. There are other tests, but they get more complicated.
