What's Apatite?

Apatite is the name of a group of phosphate minerals with analogous chemical compositions and physical parcels. They're an important element of phosphorite, a gemstone booby-trapped for its phosphorus content and used to make diseases, acids, and chemicals. Apatite has a fairly harmonious hardness and serves as the indicator mineral for a hardness of five in the Mohs Hardness Scale. Samples with excellent clarity and color are occasionally cut as faceted rocks. Those with good color and limpidity are cut as gemstones.


Apatite Source : Wikipedia 

Physical Properties of Minerals

Apatite is best known for its use as an indicator mineral with a hardness of 5 in the Mohs Hardness Scale. It's generally green in color, but can be unheroic, brown, blue, grandiloquent, pink, or tintless. These colors are frequently so pictorial that apatite has constantly been cut as a rock. Apatite is a brittle material. It breaks by both fracture and fractionalization, but the fractionalization is generally foggy. Hexagonal apatite chargers are occasionally plant in igneous and metamorphic jewels.




Physical Properties of Apatite

Chemical Classification



Green, brown, blue, yellow, violet, pink, colorless. Transparent specimens with excellent clarity and vivid color are used as gemstones.




Vitreous to subresinous


Transparent to translucent


Poor to indistinct

Moh hardness 


Specific Gravity

3.1 to 3.3

Diagnostic Properties

Color, crystal form, and hardness. Brittle, often highly fractured. Can be scratched with a steel knife blade.

Chemical Composition

A group of calcium phosphates.

    Fluorapatite: Ca5(PO4)3F
    Hydroxylapatite: Ca5(PO4)3(OH)
    Chlorapatite: Ca5(PO4)3Cl

Crystal System



Fertilizer, phosphoric acid, hydrofluoric acid, gemstones, ore of rare earth elements, pigments, gemstone. Serves as a hardness of 5 on the Mohs Hardness Scale.



Geologic Circumstance


Apatite forms under a wide variety of conditions and is plant in igneous, metamorphic, and sedimentary jewels. The most important deposits of apatite are in sedimentary jewels formed in marine and lacustrine surroundings. There, phosphatic organic debris (similar as bones, teeth, scales, and fecal material) had accumulated and was mineralized during diagenesis. Some of these deposits contain enough phosphorus that they can be booby-trapped and used to produce diseases and chemical products.

Apatite sometimes occurs as well- formed hexagonal chargers in hydrothermal modes and pegmatite pockets. These chargers frequently have a veritably high clarity and a pictorial color and have been cut into gems for collectors. Mineral collectors also enjoy these well- formed apatite chargers, and the prices paid for them frequently exceed their value as gem rough.


Phosphate gemstone

Phosphate gemstone and phosphorite are names used for sedimentary jewels that contain at least 15 to 20 phosphate on the base of weight. The phosphorous content in these jewels is substantially deduced from the presence of apatite minerals. Determining which apatite- group minerals are contained in the gemstone cannot be determined without laboratory testing because their flyspeck sizes are so small.


 Utmost phosphate gemstone has an on-detrital origin analogous to limestone. Some of the phosphate is deposited by rush from result; some is the remains and waste products of organisms; and, some is deposited by groundwater during diagenesis.

Like limestone, phosphate gemstone is deposited in sedimentary basins where the affluence of detrital material is fairly low. That allows the phosphate to accumulate with veritably little dilution from other accoutrements. Where the dilution rate is high, phosphatic shales, mudstones, limestones, and sandstones will form rather of phosphate gemstone.



Uses of Apatite as Phosphate Gemstone


Utmost of the phosphate gemstone booby-trapped throughout the world is used to produce phosphate toxin. It's also used to produce beast feed supplements, phosphoric acid, essential phosphorous, and phosphate composites for the chemical assiduity.


China is the largest patron of phosphate gemstone, producing roughly 100 million tons in 2014. The United States, Russia, Morocco, and Western Sahara are also major phosphate directors. Over 75 of the world's reserves of phosphate gemstone are located in Morocco and Western Sahara.


Phosphate gemstone is the only material that can be used to produce enough toxin to satisfy world demand. Without it, growers would not be suitable to produce enough food to feed the world's population. It's surprising that one type of gemstone, a gemstone that utmost people know nothing about, is so important to keeping the world fed and alive.




Transparent samples of apatite with pictorial green, blue, unheroic, or pink color and excellent clarity are frequently cut into faceted rocks. Some monuments are heat treated to ameliorate their color.


Seductive translucent monuments of excellent color are cut en cabochon. Infrequently, translucent apatite contains a fine silk of resemblant rutile chargers. When cut en cabochon with the silk acquainted parallel to the bottom of the gravestone, these samples will frequently parade a chatoyance known as" cat's eye."


As a rock, apatite is more popular with gem collectors than it's with jewelry buyers. The mineral has a Mohs hardness of 5, breaks with parting, and is veritably brittle. These characteristics make it too fragile for use in utmost types of jewelry.


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