Q. Consider the following statements:

1. Fluoride used to reduce cavities, comes from a mineral fluorite.
2. Most toothpastes are made white with titanium oxide.
3. The sparkle in some toothpastes comes from mica.

Which of the above is / are correct?
Answer: All of the above
Notes: In toothpaste, abrasive minerals like silica, limestone, aluminium oxide and various phosphate minerals do the cleaning. Fluoride which is used to reduce cavities, comes from a mineral-fluorite. Most toothpastes are made white with titanium oxide, which comes from minerals called rutile, ilmenite and anatase. The sparkle in some toothpastes comes from mica.