It depends on what the rock is. That particular test is usually called a "streak test" or "porcelain streak test", if that's what you were looking for.
To stretch; to extend; hence, to lay out, as a dead body., A line or long mark of a different color from the ground; a stripe; a vein., A strake., The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface, the color of which is sometimes a distinguishing character., The rung or round of a ladder., To form streaks or stripes in or on; to stripe; to variegate with lines of a different color, or of different colors., With it as an object: To run swiftly.
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.
A streak is a line or band of a different color or texture from its surroundings, often used to describe patterns seen in minerals or rocks. It can be used in mineral identification to help differentiate one mineral from another based on its unique streak color.
Mineral extraction sites adjacent to the railroad line.
The equator is an imaginary line. If you stood and looked at the ground at the equator, you would see....ground. The equator is not a mark on the surface of the Earth. On maps and globes it is usually a black line.
To stretch; to extend; hence, to lay out, as a dead body., A line or long mark of a different color from the ground; a stripe; a vein., A strake., The fine powder or mark yielded by a mineral when scratched or rubbed against a harder surface, the color of which is sometimes a distinguishing character., The rung or round of a ladder., To form streaks or stripes in or on; to stripe; to variegate with lines of a different color, or of different colors., With it as an object: To run swiftly.
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.
The streak test is used to determine the color of the powder left behind when a mineral is scraped along a white ceramic plate. This color is often different from the color of the mineral itself and can help identify the mineral.
It means the color of a minerals powder. When you rub a mineral against a piece of unglazed porcelain tile, the minerals powder is left behind, although the powder's color may seem a little bit lighter than the mineral's color..............
A streak is a line or band of a different color or texture from its surroundings, often used to describe patterns seen in minerals or rocks. It can be used in mineral identification to help differentiate one mineral from another based on its unique streak color.
Rubbing the mineral against an unglazed ceramic tile, called a streak plate, leaves a streak of the powdered mineral. This powder reflects the true color of the mineral. It's called a streak test, and the resultant line of color is called the streak. A link can be found below to check facts and learn more.
It is called the streak, and refers to the color of the powdered mineral that is left on a ceramic streak plate after the mineral specimen has been drawn across it. It may be different than the color of the observed specimen and is representative of the true color of a mineral that does not include impurities or traces of other minerals, or has been irradiated or heated.
Mineral extraction sites adjacent to the railroad line.
because it can be rubbed out you nogging
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.
You can detect a black line on a white surface using infrared sensors that can distinguish the color contrast between the line and the surface. The sensors can detect the different reflectivity levels of the two colors and help the robot follow the line accordingly. Employing a PID (Proportional Integral Derivative) control algorithm can also assist in keeping the robot aligned with the black line.
Basalt has a reddish brown streak. It is a dark and dense igneous rock of a minor lava flow.