The shekel in Biblical Hebrew is a unit of weight and currency that is smaller than both the talent and the mina. It was commonly used for trade and transactions and had different values depending on the historical era and location. In some contexts, it was equivalent to 20 gerahs.
A microgram (µg or mcg) is a metric unit of mass or weight in the International System of Units (SI). It represents one millionth of a gram or 10^-6 grams. The metric system is a decimal-based system of measurement used worldwide, and it provides a convenient way to express both large and small quantities of mass.
To provide context for the size of a microgram:
Micrograms are commonly used in scientific and medical contexts, especially when dealing with substances or quantities that are very small. For example: