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.
Minerals in the apatite group are all calcium phosphates with the same crystalline structure. The generalized chemical composition of apatite is Ca 5 (PO 4) 3 (OH,F,Cl).This formula represents an admixture of the three important minerals of the apatite group: hydroxylapatite, fluorapatite and chlorapatite.t is a mixture of cryptocrystalline apatite minerals and amorphous calcium phosphates. Apatite is best known for its use as an index mineral with a hardness of 5 in the Mohs Hardness Scale. It is usually green in color, but can be yellow, brown, blue, purple, pink or colorless.