What Manufacturers Really Mean By Natural And Artificial Flavors Like many shoppers, I find food labels confusing. In most circumstances, the implications of âartificialâ and naturalâ are pretty clear.
Hydroxylapatite, also called hydroxyapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4) 3 (OH), but is usually written Ca 10 (PO 4) 6 (OH) 2 to denote that the crystal unit cell comprises two entities. Hydroxylapatite is the hydroxyl endmember of the complex apatite group.
The most common phosphate is the apatite group; common species within this group are fluorapatite (Ca 5 (PO 4) 3 F), chlorapatite (Ca 5 (PO 4) 3 Cl) and hydroxylapatite (Ca 5 (PO 4) 3 (OH)). Minerals in this group are the main crystalline constituents of teeth and bones in vertebrates.