Manganese-bearing Fluorapatite
A variety of Fluorapatite
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About Manganese-bearing Fluorapatite
Formula:
(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Colour:
Blue, Greenish blue
Lustre:
Vitreous, Sub-Vitreous, Resinous
Hardness:
5
Name:
Informal descriptive modifier, introduced by Waldemar Schaller, joined to a mineral name . Although there are several Mn-bearing varieties of fluorapatite, some have been given unique names (manganapatite) and some have not, e.g. purple apatite and pink apatite. The dark blue apatites owe their coloration to pentavalent Mn and it is apparently the intention to give this unusual high valence substitution a separate name: Mn-bearing fluorapatite, although any Mn-bearing fluorapatite with unknown valence Mn, could be included under this generic name.
A variety of Fluorapatite
A high valence manganese-bearing variety of fluorapatite, generally containing Mn5+. The name "manganapatite" has been incorrectly applied to this variety.
When Mn2+ and, probably some divalent Fe, replaces Ca, the resulting colour may be dull green (McConnell, 1973). When Mn3+ is present, a pinkish or violet colouration results, which is typical for some alkaline pegmatites of the Lovozero massif. Some purple apatites have been studied by Mossbauer spectroscopy, and the purple colour has been ascribed to MnMn4+. Mn5+ can replace P and this will result in a blue colour (Johnson, Prener, and Kingsley, 1963; Hughes et al., 2004). For example, fluorapatite with high valence Mn5+ fluorapatite often forms blue rims around orange lithiophilite grains at the Rb-Ta Elash deposit.
NOTE: The names manganapatite or manganoan apatite have been used to describe certain samples of fluorapatite that contain divalent Mn that causes a golden-yellow fluorescent response under UV. Without the manganese, fluorapatite is frequently unresponsive to UV, although there are other fluorescence activators in the apatites. Large amounts of Mn in fluorapatite, generally > 4 weight percent, are poorly fluorescent to non-fluorescent.
A high valence manganese-bearing variety of fluorapatite, generally containing Mn5+. The name "manganapatite" has been incorrectly applied to this variety.
When Mn2+ and, probably some divalent Fe, replaces Ca, the resulting colour may be dull green (McConnell, 1973). When Mn3+ is present, a pinkish or violet colouration results, which is typical for some alkaline pegmatites of the Lovozero massif. Some purple apatites have been studied by Mossbauer spectroscopy, and the purple colour has been ascribed to MnMn4+. Mn5+ can replace P and this will result in a blue colour (Johnson, Prener, and Kingsley, 1963; Hughes et al., 2004). For example, fluorapatite with high valence Mn5+ fluorapatite often forms blue rims around orange lithiophilite grains at the Rb-Ta Elash deposit.
NOTE: The names manganapatite or manganoan apatite have been used to describe certain samples of fluorapatite that contain divalent Mn that causes a golden-yellow fluorescent response under UV. Without the manganese, fluorapatite is frequently unresponsive to UV, although there are other fluorescence activators in the apatites. Large amounts of Mn in fluorapatite, generally > 4 weight percent, are poorly fluorescent to non-fluorescent.
Unique Identifiers
Mindat ID:
2562 (as Manganese-bearing Fluorapatite)
1572 (as Fluorapatite)
1572 (as Fluorapatite)
Long-form identifier:
mindat:1:1:2562:7 (as Manganese-bearing Fluorapatite)
mindat:1:1:1572:7 (as Fluorapatite)
mindat:1:1:1572:7 (as Fluorapatite)
GUID
(UUID V4):
(UUID V4):
0e57a735-b604-4936-bb93-3b352cd28f6e (as Manganese-bearing Fluorapatite)
9c0a7dda-21e0-4d78-938d-2356cc183767 (as Fluorapatite)
9c0a7dda-21e0-4d78-938d-2356cc183767 (as Fluorapatite)
Pronunciation of Manganese-bearing Fluorapatite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Manganese-bearing Fluorapatite
Vitreous, Sub-Vitreous, Resinous
Transparency:
Transparent, Translucent, Opaque
Colour:
Blue, Greenish blue
Hardness:
5 on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
{0001}, {1010}
{0001}, {1010}
Fracture:
Irregular/Uneven, Conchoidal, Sub-Conchoidal
Chemistry of Manganese-bearing Fluorapatite
Mindat Formula:
(Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Geological Environment
Geological Setting:
Pegmatites
Synonyms of Manganese-bearing Fluorapatite
Other Language Names for Manganese-bearing Fluorapatite
Simplified Chinese:é°çŁ·ç°çł
Spanish:Rodofosfita
Common Associates
Associated Minerals Based on Photo Data:
15 photos of Manganese-bearing Fluorapatite associated with Quartz | SiO2 |
13 photos of Manganese-bearing Fluorapatite associated with Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
8 photos of Manganese-bearing Fluorapatite associated with Londonite-Rhodizite Series | |
7 photos of Manganese-bearing Fluorapatite associated with Albite | Na(AlSi3O8) |
6 photos of Manganese-bearing Fluorapatite associated with Microcline | K(AlSi3O8) |
5 photos of Manganese-bearing Fluorapatite associated with Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
5 photos of Manganese-bearing Fluorapatite associated with Cleavelandite | Na(AlSi3O8) |
5 photos of Manganese-bearing Fluorapatite associated with Rubellite | A(D3)G6(T6O18)(BO3)3X3Z |
4 photos of Manganese-bearing Fluorapatite associated with Olenite | NaAl3Al6(Si6O18)(BO3)3O3(OH) |
4 photos of Manganese-bearing Fluorapatite associated with Feldspar Group |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Manganese-bearing Fluorapatite
mindat.org URL:
https://www.mindat.org/min-2562.html
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References for Manganese-bearing Fluorapatite
Reference List:
Localities for Manganese-bearing Fluorapatite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
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Selsurt Mountain, Lovozersky District, Murmansk Oblast, Russia