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The purpose is to discover how the rocks and minerals were formed and what the rocks and minerals are made of.
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How do geologists test rocks?
assay tests on rock samples.... usually varied standard methods of testing exist at good assay labs place for testing different rock samples for specific minerals
What test do geologists use to determine the hardness of a mineral?
the streak test
What rocks can be identified by the streak test?
The streak test is not a very good identifier of rocks because rocks are composed of combinations of minerals which may have different color streaks. The streak test is mainly used in mineral identification. Even then, it is used in common with other indicators, like hardness, crystal system, and chemical composition.
What do geologists use the acid test for?
Because its cool
What is the streak of sandstone?
Rocks are not considered to have a streak, as they may consist of several minerals. In the case of sandstone, the rock could be composed of feldspar, quartz, glauconite, and other minerals. Minerals in solutions can penetrate and stain the sandstone as well and affect the attempted streak test.
How do geologists test rocks?
assay tests on rock samples.... usually varied standard methods of testing exist at good assay labs place for testing different rock samples for specific minerals
Which test is used to show the color of minerals found in certain rocks?
streak test
Why do field geologist usually carry a small plate of unglazed porcelain what is it used to test?
it is used to test streak, for rocks and minerals
Which mineral Fizz when dilute acid is dropped on them?
Some minerals give off carbon dioxide bubble when acid is dropped on them. Geologists have termed this as the "acid test".
What test do geologists use to determine the hardness of a mineral?
the streak test
What rocks can be identified by the streak test?
The streak test is not a very good identifier of rocks because rocks are composed of combinations of minerals which may have different color streaks. The streak test is mainly used in mineral identification. Even then, it is used in common with other indicators, like hardness, crystal system, and chemical composition.
What were the goals of the Lewis and Clark Epedition?
they wanted to find a route to the oacific ocean and they wanted to test the dirt and soil and rocks and minerals
What features do geologists look for when they prospect for ores?
Geologists prospect ores by looking at their shape, size, color and how hard it is. They also need to find what is inside the ore or else they will not know what kind of ore it is.
What PROPERTY are geologists testing when they do a SCRATCH test?
Hardness
What do geologists use the acid test for?
Because its cool
What is the purpose of a scratch test?
The scratch test is used for identifying minerals.You simply get a hard, white surface, and scratch the mineral on it.
What is the streak of sandstone?
Rocks are not considered to have a streak, as they may consist of several minerals. In the case of sandstone, the rock could be composed of feldspar, quartz, glauconite, and other minerals. Minerals in solutions can penetrate and stain the sandstone as well and affect the attempted streak test.
