A mineral's ability to reflect light is a test for its luster. Luster describes how light is reflected off the surface of a mineral, and it can be classified as metallic or non-metallic. Metallic luster is shiny like metal, while non-metallic luster can be categorized further into subcategories like vitreous (glassy), pearly, or dull.
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The acid test is used to determine the presence of carbonate minerals in a sample. If the mineral fizzes or reacts with acid, it indicates the presence of carbonate minerals such as calcite or dolomite.
The acid test is used to determine if a mineral contains carbonate minerals. When a mineral fizzes or reacts with acid, it indicates the presence of carbonate minerals such as calcite or dolomite. This test helps mineralogists identify and distinguish between different minerals.
A streak test is used to determine a minerals streak color. This can help in with the identification of minerals. A streak test is performed by rubbing the mineral on an unglazed ceraminc tile, then observing the color of the streak which is left behind. All minerals do not leave streaks. Harder minerals will not streak, but this can also be used as a tool for identifying the mineral, if you are familiar with the hardness scale.
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Ultraviolet light is used to test minerals because it can cause certain minerals to fluoresce or emit visible light when exposed to UV radiation. This fluorescence can help identify the specific mineral present in a sample based on its unique color and intensity under UV light.
Geologists use the Mohs scale of mineral hardness to determine the relative hardness of a mineral by scratching it with minerals of known hardness. The scale ranks minerals from 1 (softest) to 10 (hardest) based on their ability to scratch or be scratched by other minerals.
for most parts i dont agree, Indonesian has standard grading test in all of area indonesia. this doesn't reflect the real ability and the interest of Indonesian student, So in my humble opinion the grading system must reflect personal ability of student, not generalize them
The Mohs scale of mineral hardness is used to determine the scratch resistance of minerals by ranking them from softest (1) to hardest (10) based on their ability to scratch or be scratched by another material. It is commonly used by geologists, mineralogists, and in fields like gemology to identify and classify minerals based on their hardness.
Aston Index is an ability test.
It distinguishes calciferous minerals from other minerals.
The tests indicate the best match of the tasks and responsibilities of jobs by the answers provided by test takers