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Mineralpedia Details for Fluorapatite

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Fluorapatite

Fluorapatite

Named for the dominance of fluorine in the composition and as a member of the apatite group. Fluorapatite is a common mineral that can be found as fine crystals in Germany, Austria, Portugal, Afghanistan, Pakistan, Brazil, Mexico, the United States, Canada, Russia, South Africa, and Australia. It is the most common rock-forming phosphate mineral and is an accessory in most igneous rocks. It can be found in syenites, alkaline rocks, carbonatites, granite pegmatites, marbles, skarn, metamorphic rocks, Alpine-type fissures, hydrothermal tin veins, sedimentary phosphorites, as a detrital or diagenetic mineral in oolitic ironstones and carbonate rocks and shales, and in residual amounts in laterites. Typically found as light to deep purple, hexagonal, prismatic crystals. Uncommonly with pyramidal terminations. Colors, size of crystal, and crystal habits are usually different for each geological environment in which apatite occurs. Fluorapatite can be cathodoluminescent, phosphorescent, or fluorescent under ultraviolet light.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/fluorapatite.pdf

Formula
Ca5(PO4)3
Crystal System
Hexagonal 
Crystal Habit
Massive - Granular, Euhedral Crystals 
Cleavage
Indistinct, None, None 
Luster
Vitreous - Resinous 
Color
blue, brown, colorless, violet, green 
Streak
white 
Class
Hexagonal - Dipyramidal 
Fracture
Brittle - Conchoidal 
Hardness
WebMineral
View Fluorapatite 
Mindat
View Fluorapatite 

Fluorapatite from King Lithia mine, Pennington Co., South Dakota, United States

Fluorapatite
            from King Lithia mine, Pennington Co., South Dakota, United States
Special Info
Pegmatite

Purple 1cm hexagonal crystal.

Light purple, prismatic crystal to 8mm. Also Blue hexagonal crystals to 1mm with white zoned core unique to the King Lithia mine.

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Fluorapatite from Levant mine, St. Just dist., Cornwall, England

Fluorapatite
            from Levant mine, St. Just dist., Cornwall, England
Special Info
Hydrothermal

Root-beer colored short prismatic, hexagonal crystals of Fluorapatite to 2-3mm.

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Fluorapatite from Golconda pegmatite, Governador Valadares, Doce valley, Minas Gerais, Brazil

Fluorapatite
            from Golconda pegmatite, Governador Valadares, Doce valley, Minas Gerais, Brazil
Special Info
Pegmatite

Light purple hexagonal crystals to 5mm on Elbaite Tourmaline encrusted over with very micro crystals of Bertrandite and Todorokite.

Hexagonal crystals of Fluorapatite to 4mm associated with water clear Bertrandite.

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Fluorapatite from Cerro de Mercado mine, Durango, Mexico

Fluorapatite
            from Cerro de Mercado mine, Durango, Mexico

2 cm yellow hexagonal crystal with pyramidal termination.

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Fluorapatite from Chumar Bakhoor, Nagar, Northern Areas, Pakistan

Fluorapatite
            from Chumar Bakhoor, Nagar, Northern Areas, Pakistan
Special Info
Pegmatite

Highly lustrous and gemmy cluster of Fluorapatite crystals with the largest up to 1.5cm. These are extraordinarily large apatite crystals with an uncommon pink color. All the crystals are perfect hexagonal prisms and each is doubly terminated. Also a large dark pink, gemmy, terminated crystal with 5 of the 6 sides showing anywhere from 3.5cm to 5mm along the prism faces.

A HUGE dark pink, gemmy, terminated crystal with 5 of the 6 sides showing anywhere from 3.5cm to 5mm along the prism faces.

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Fluorapatite from Paroon, Dara-i-Pech, Kunar Province, Afghanistan

Fluorapatite
            from Paroon, Dara-i-Pech, Kunar Province, Afghanistan
Special Info
Pegmatite

Purple short, hexagonal crystals to 5mm.

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Fluorapatite from Mount Apatite, Androscoggin Co., Maine, United States

Fluorapatite
            from Mount Apatite, Androscoggin Co., Maine, United States
Special Info
Pegmatite

4mm purple hexagonal crystal.

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Fluorapatite from Panasqueira, Covilha, Castelo Branco dist., Portugal

Fluorapatite
            from Panasqueira, Covilha, Castelo Branco dist., Portugal
Special Info
Hydrothermal Sn-W deposit

Faint bluish grey, large 1cm, well-formed and lustrous Fluorapatite crystals. In the group there are four crystals all on brownish red crystals of Muscovite and large, gorgeous and gemmy green Fluorapatite crystals to 1.8cm

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Fluorapatite from Dan Patch mine, Keystone, Pennington Co., South Dakota, United States

Fluorapatite
            from Dan Patch mine, Keystone, Pennington Co., South Dakota, United States
Special Info
Pegmatite

Cluster of light puple Fluorapatite crystals, 2cm.

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Fluorapatite from Greenwood, Oxford Co., Maine, United States

Fluorapatite
            from Greenwood, Oxford Co., Maine, United States
Special Info
Phillips Collection

An old Neal Yedlin specimen (see tag in provenance) with 4-5mm purple Fluorapatite crystals.

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Fluorapatite from Sapo mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil

Fluorapatite
            from Sapo mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil

Interesting long hexagonal crystals grown end on end.

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Fluorapatite from Siglo Viente mine, Llallagua, Bolivia

Fluorapatite
            from Siglo Viente mine, Llallagua, Bolivia

A thick colorless Fluorapatite crystal with minor Pyrite on the backside contact.

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Fluorapatite from Renfrew Co., Ontario, Canada

Fluorapatite
            from Renfrew Co., Ontario, Canada

A large reddish brown Fluorapatite crystal to 8cm on matrix.  An older specimen probably from Paul Moore with his label matching the specimen.

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Fluorapatite from Harvard quarry, Greenwood, Oxford Co., Maine, United States

Fluorapatite
            from Harvard quarry, Greenwood, Oxford Co., Maine, United States

3-4mm purple prismatic Fluorapatite crystals on Cookeite matrix from this classic locality.

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Fluorapatite from Medina pegmatite field, Pedra Azul dist., Minas Gerais, Brazil

Fluorapatite
            from Medina pegmatite field, Pedra Azul dist., Minas Gerais, Brazil

Amazingly water clear Fluorapatite with complex terminations. The largest crystal is 1.8cm. There are several other crystals and most carry a light golden brown color. 

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Fluorapatite from Dara-i-Pech., Kunar prov., Afghanistan

Fluorapatite
            from Dara-i-Pech., Kunar prov., Afghanistan

Light purple very nice short prismatic crystals to 4mm covering several faces of the matrix. 

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