.: all the info is in that strip on the back. i think the number on the front is just sequencial. wal-fart swipes your card when you buy booze. this is a gross breach of privacy and you should never let them do that.any states used your SSN for a long time, glad they changed from that!. What is typical is a set of letters and numbers based off of your name, and birth date. Other information may be included such as the location of where you got the license.
The streak test is most useful for identifying dark colored minerals, especially metals. How to use streak as an identification mark When testing for streak, the mineral must be crushed to determine the color of its powder. The color of the powder is the color of the streak.
Unlike the apparent color of a mineral, which for most minerals can vary considerably, the trail of finely ground powder generally has a more consistent characteristic color, and is thus an important diagnostic tool in mineral identification. If no streak seems to be made, the mineral's streak is said to be white or colorless. Streak is particularly important as a diagnostic for opaque and colored materials. It is less useful for silicate minerals, most of which have a white streak or are too hard to powder easily. The apparent color of a mineral can vary widely because of trace impurities or a disturbed macroscopic crystal structure.