👉 A nonalkaloidal substance is one that does not contain any alkali metals (potassium, sodium, calcium or magnesium) as its constituent elements. These substances are often found in minerals and rocks, such as quartz, feldspar, and calcite. They do not react with water to form acids or bases, making them nonpolar. Nonalkaloidal substances can be categorized into two main categories: alkaline earth metals (potassium, sodium, calcium, and magnesium)
