No it does not work with all minerals. For if you did not know streak plates have a hardness of 7 (maybe a little lower or higher) on the Mohs scale. Some minerals are harder than 7 though. If they are harder they will not work with the streak test. some examples are Diamond, topaz, and corundum.
property,cleavage,fracture,streak
by simply testing the streak of the mineral. all minerals have a different streak take a streak plate and scrape the rock down it in a straight line and the color should tell you what mineral it is :) that's the best way.
'Fracture' means 'to break'. Minerals often break (or fracture) in certain directions that many other minerals do not. The way a mineral fractures, then, helps a person narrow down the identity of the mineral. Fracture, along with color, streak color, hardness, and specific gravity are all used in the identification of minerals.
No not all. Some minerals are metals.
yes they are all minerals and gemstones
The streak test can only identify minerals that have a consistent powder color when scratched on a rough surface. It may not work well for minerals harder than the streak plate or those with a variable powder color due to impurities. Additionally, some minerals lack a distinguishable streak color, making it unreliable for their identification.
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.
Gabbro does not have a streak because it is a coarse-grained rock made up of minerals like plagioclase feldspar and pyroxene that are harder than the streak plate. As a result, gabbro does not leave a streak when rubbed on a streak plate.
Those minerals that are harder than the unglazed porcelain streak plate will scratch it rather than leave a streak.
Shale is a type of rock, not a mineral. Streak is used to help classify minerals. It can leave a streak, but it doesn't mean anything.
property,cleavage,fracture,streak
cleavage, luster, color, streak
by simply testing the streak of the mineral. all minerals have a different streak take a streak plate and scrape the rock down it in a straight line and the color should tell you what mineral it is :) that's the best way.
A minerals hardness is its relative ability to scratch or be scratched by other minerals. Diamond, for instance, can scratch all other minerals because of its hardness. Streak is the color of the mineral when powdered. This is usually accomplished by the streak test (swiping the mineral across an unglazed porcelain surface) which reveals a mineral's streak color, which may differ from the color of the specimen being tested.
The streak of a diamond is transparent.First of all, diamond is spelled 'diamond'. Next, diamond might seem like it has a streak when it scratches something but that is only a scratch. Diamonds do not have a streak.
The colour of the streak left by a mineral is one of the features used to identify it. For instance, haematite leaves a red streak, malachite leaves a light green streak, while quartz, calcite and gypsum all leave a white streak.
You may be thinking of unglazed porcelain, used in streak tests? The reason I'm not sure is that different minerals leave different color streaks. After all, it's not much of a test if there's never any difference in the results: "Let's try the gravity test... yep, falls down; you know, I'm starting to think that maybe this test is a waste of time."