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What you are referring to is called a streak test. It's used as an aid to mineral identification. As a mineral is drawn over the unglazed tile surface, it is reduced to a streak of dust which reveals the true color of the mineral. If no color is revealed, the streak color is called white. An amethyst crystal which appears purplish will actually have a white streak, because the streak color of the constituent quartz is white. The purplish color of amethyst is due to other reasons.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoYou find its streak. This is called the streak test.
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What do you find when you scratch a mineral over an unglazed tile that starts with a C?
colour?
What you find when you scratch mineral over an unglazed tile?
The answer will depend on the mineral. Some minerals, such as talc, are extremely soft and will not mark the tile.
What you find when you scratch a mineral over a unglazed tile it starts with a c?
ive got no idea that is y i came here stupid thing
What do you find when you scratch a mineral over an unglazed tite?
If you are my classmate ill be very surprised. the answer is streak the box is made wrong. PS: if you are my class mate i remind u that our teachers printer is BROKEN...
What you find when you scratch a mineral over a tile?
Usually the mineral deposits a certain color or colors that you wouldn't see otherwise.
What mineral property if you testing if you scratch a mineral on ceramic tile?
You're testing it's hardness.
What is the difference between a minerals color and streak?
Color is what you observe when you look at a mineral. Streak is the color of the mineral when in a fine powder form. This can be observed by drawing a sample of the mineral over an unglazed porcelain tile and noting the color of the line left on the tile.
On a scale of 1-10 can a level 6 scratch a mineral over the level of six?
yes, though not easily. Moh's hardness scale is not very even- the difference between 5 and 6 is not that great and a sharp point of 5 can possibly scratch a rough surface of 6, the with damage to the 5. This is certainly true where a mineral is recorded as hardness 6, but has variable hardness, so the surface being scratched is actually lower than 6 - Disthene is a well-known example of a mineral with hardness that varies in different directions.
Why Is Streak A Useful Property For Identifying Minerals?
The streak of a mineral is much more accurate in identifying a mineral than color. The streak of a mineral can distinguish minerals with metallic and non-metallic luster. For example, metallic minerals generally have a dark streak whereas non-metallic luster minerals often have a light colored streak.
What is a idiom for start over?
start from scratch
Can talc scratch over minerals?
Talc is supposed to be too fragile to cause a scratch on the majority of minerals.
What is the definition of scratch the surface?
scratch the surface means going over something briefly without much detail.
