Primary Stone / Apatite

Gemstone: Apatite

Gemstone Family: Apatite

Gemstone Count: 1

Carat Weight: 0.51

Gemstone Shape: Oval

Primary Color: blue

Color: Blue

Treatment: Heated

Country of Origin: Madagascar

Composition: Natural

Dimensions: 6.03 x 4.12 x 3.31 mm

Apatite Gemological Properties:

Chemical Formula: Ca5(PO4)3(F,OH,CI) - Basic Fluoro- and Chloro-Calcium

Crystal Structure: Hexagonal, Columnar, Thick Tabular

Color: Colorless, pink, yellow, green, blue, violet

Hardness: 5 (Defining Mineral)

Refractive Index: 1.628 - 1.649

Density: 3.16 - 3.23

Cleavage: Indiscernible, Conchoidal Fracture

Transparency: Transparent to translucent

Double Refraction / Birefringence: -0.002 to -0.006

Luster: Vitreous

Fluorescence: Yellow A.: Purple to Pink