Fluorstrophite (original) (raw)

A valid IMA mineral species

About FluorstrophiteHide

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Colour:

Green to yellow-green, colourless

Name:

First named strontium-apatite by Efimov et al. in 1962. It was later changed to apatite-(SrOH) (Burke 2008) despite fluorine being dominant over hydroxyl. It was renamed to fluorstrophite by Pasero et al. (2010). The current name reflects the composition, including dominant fluorine, strontium, and phosphate.

This page provides mineralogical data about Fluorstrophite.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3757:6

abf61fae-9eb0-4334-9480-99e653fc50b3

IMA Classification of FluorstrophiteHide

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Type description reference:

Classification of FluorstrophiteHide

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8.BN.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
N : With only large cations, (OH, etc.):RO4 = 0.33:1

41.8.1.7

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : A5(XO4)3Zq

22.1.18

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Physical Properties of FluorstrophiteHide

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Transparency:

Transparent, Translucent

Colour:

Green to yellow-green, colourless

Optical Data of FluorstrophiteHide

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RI values:

_n_ω = 1.651 _n_ε = 1.637

δ = 0.014

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of FluorstrophiteHide

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Mindat Formula:

SrCaSr3(PO4)3F

Crystallography of FluorstrophiteHide

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Class (H-M):

6/m - Dipyramidal

Cell Parameters:

a = 9.565(8) Å, c = 7.115(3) Å

Unit Cell V:

563.74 ų (Calculated from Unit Cell)

Morphology:

Crystals short to long hexagonal prisms [0001], with {1010} and {1011} dominant; also thick tabular {0001}, frequently in the crystals of hydrothermal origin in pegmatites and veins, with {1010}, relatively large {0001}, and often also {1011} or low pyramids. Massive, coarse granular to compact.

Comment:

Space group P63/m or P63.

Crystal StructureHide

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X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of FluorstrophiteHide

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General Appearance of Type Material:

Poorly formed oval crystals 0.2x1 cm in longitudinal section and as small crystals with corroded faces.

Geological Setting of Type Material:

Associated Minerals at Type Locality:

Reference:

Efimov, A.F., Kravchenko, S.M., Vasil’eva, Z.V. (1962) Strontium-apatite — a new mineral. Doklady Akademii Nauk SSSR: 142: 439-442.

Synonyms of FluorstrophiteHide

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Other Language Names for FluorstrophiteHide

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Relationship of Fluorstrophite to other SpeciesHide

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Other Members of this group:

Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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Notes:

Soluble in HCl or in HNO3. Varieties containing CO3 may dissolve with slight effervescence.

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 FluorstrophiteHide

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References for FluorstrophiteHide

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Reference List:

Pasero, Marco, Kampf, Anthony R., Ferraris, Cristiano, Pekov, Igor V., Rakovan, John, White, Timothy J. (2010) Nomenclature of the apatite supergroup minerals. European Journal of Mineralogy, 22 (2) 163-179 doi:10.1127/0935-1221/2010/0022-2022

Localities for FluorstrophiteHide

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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.