high magnetic power which enable it to use in compass
The property that would be most useful in telling hematite and magnetite apart is magnetism. Magnetite is strongly magnetic, whereas hematite is not magnetic. This distinction can help differentiate between the two minerals.
Density is the least useful property for identification because different specimens of the same type of mineral can vary in size. -Color is the least useful property for identification because it is the most obvious property.
A compass was invented by the Chinese and was very useful to the sailors.
Pottery very useful
If it is a guard dog it guards property, that is useful.
This depends on your needs !
to be awsome
The property most useful for the identification of sulfur is its characteristic smell, often described as similar to that of rotten eggs.
the same way knowledge of the stars was useful to sailors it let them figure out which way to go in order to get home.
Travelers relying on a compass in an area with a large magnetite deposit may experience compass interference due to the magnetic properties of magnetite. This could cause the compass to give inaccurate readings, leading travelers to navigate in the wrong direction. To mitigate this issue, travelers should cross-check their navigation using other methods such as landmarks or GPS.
Understanding ancient languages
Magnetite Layer is developed after essential chemical treatment. For instance, hydrazine and sodium sulfite are the most broadly chemicals. The presence of this layer has as result the deceleration of corrosion attack in tube's surface. Moreover, when this protective layer is spoiled, then mechanism of corrosion is going to start.