What is Apatite?
Apatite is a group of phosphate minerals that includes fluorapatite, chlorapatite, and hydroxylapatite. It’s primarily found in Russia, Mexico, and the USA. Apatite is often used as a gemstone and is popular for its wide range of colors including blue, green, and yellow.
Apatite is a colorful gemstone that comes in a variety of hues. Its vibrant colors and lustrous appearance make it a popular choice for jewelry, especially rings and necklaces.
|Chemical Classification||Inorganic - Phosphate|
|Color||Apatite comes in a variety of colors, including blue, green, yellow, brown, and colorless.|
|Luster||Vitreous to greasy.|
|Transparency||Transparent to translucent.|
|Occurrence||Brazil, Mexico, and Myanmar.|
|Formation||Apatite forms in various geological environments, including igneous, metamorphic, and sedimentary rocks.|
|Diaphaneity||Transparent to translucent|
|Diagnostic Properties||Often blue or green, low hardness.|
|Pleochroism||Visible in some varieties, especially the blue and green ones.|
|Optical Properties||Biaxial (-)|
|Refractive Index||1.632 - 1.638|
|Birefringence||0.002 - 0.008|
|2V angle||Measured: 78° to 82°|
|Dispersion||Not notably high.|