Definition

1. Noun:
   • A mineral form of calcium phosphate: Fluorapatite is a specific crystalline mineral belonging to the apatite group.
   • Characterized by fluorine content: It is distinguished from other apatites by having fluorine as the predominant halogen (over chlorine or hydroxyl groups). Its chemical formula is often given as Ca₅(PO₄)₃F.

Usage Examples

• Noun:
  • Fluorapatite is the primary mineral component of tooth enamel and bone.
  • The geologist identified the sample as fluorapatite based on its crystal structure and composition.
  • Adding fluoride to water helps convert tooth enamel into a more decay-resistant form of fluorapatite.

Advanced Usage

• In geology and mineralogy: The term is used to specify the fluorine-rich endmember of the apatite mineral series, which is important for classifying phosphate rocks.
• In dentistry and medicine: Fluorapatite is referenced as the ideal, more acid-resistant form of hydroxyapatite that forms in teeth when fluoride is present.

Variants and Related Words

• Apatite (n): The broader mineral group to which fluorapatite belongs.
• Hydroxyapatite (n): The analogous mineral where hydroxyl groups predominate, a key component of bone.
• Chlorapatite (n): The less common variant where chlorine is the predominant halogen.

Synonyms

• Calcium fluorophosphate (a descriptive chemical synonym).

Related Phrases

• Fluorapatite formation: The process by which this mineral crystallizes or is synthesized.
• Fluorapatite layer: A surface layer of this mineral, often discussed in the context of dental protection.

Noun

1. a form of apatite in which fluorine predominates over chlorine