Hagendorfite-NaNa (original) (raw)

A material that is NOT an approved mineral species

About Hagendorfite-NaNaHide

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Formula:

NaNaFe2+(Mn2+,Mn3+)(PO4)3 (?)

Crystal System:

Monoclinic

Name:

Originally published as a re-definition of hühnerkobelite (Moore, 1965). Renamed hagendorfite-NaNa by Moore and Ito (1979) for a member of the Alluaudite Group with the formula (M(2)4(M(1)4X(1)4X(2)4(PO4)-[_][_] where the dominant cation occupancies are: M(2) = Fe#2+#, M(1) = Mn#2+#, X(2) = Na, and X(1) = Na. Moore and Ito (1979) stated: "The proposed nomenclature of the alluaudites and the wyllieites was brought before the Commission on New Minerals and new Mineral Names (IMA)." Several species of the alluadite/wyllieite group have followed the proposed notation, but the proposal has not been adopted to date (2017).

Brilliant black stout crystals.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:31866:8

a5078e62-2485-4e07-a7bc-5214a3b884e1

IMA Classification of Hagendorfite-NaNaHide

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IMA status notes:

Pending approval

Approval history:

Submitted in 1979. No action to date.

Classification of Hagendorfite-NaNaHide

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8.AC.05

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
C : With medium-sized and large cations

Physical Properties of Hagendorfite-NaNaHide

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Comment:

Extremely fragile

Optical Data of Hagendorfite-NaNaHide

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RI values:

_n_α = 1.727 _n_γ = 1.738

δ = 0.011

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

Comments:

X = tan, Z = blue green

Chemistry of Hagendorfite-NaNaHide

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Mindat Formula:

NaNaFe2+(Mn2+,Mn3+)(PO4)3 (?)

Crystallography of Hagendorfite-NaNaHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 10.89 Å, b = 9.98 Å, c = 6.46 Å
β = 97.55°

Ratio:

a:b:c = 1.091 : 1 : 0.647

Unit Cell V:

696.00 ų (Calculated from Unit Cell)

Morphology:

c{001}, b{010}, a{100}, k{130}, j{310}, w{211}, x{321}, f{123},

Comment:

I21/a according to Moore (1965), Moore (1971); P2/n and C2/c according to Moore and Ito (1979).

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Geological Setting:

Late-stage granite pegmatite phosphate pods

First Recorded Occurrence of Hagendorfite-NaNaHide

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General Appearance of First Recorded Material:

Black equant crystals, also massive

Geological Setting of First Recorded Material:

Late-stage phosphate replacement unite of granite pegmatite

Associated Minerals at First Recorded Locality:

Synonyms of Hagendorfite-NaNaHide

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Relationship of Hagendorfite-NaNa to other SpeciesHide

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Other Members of this group:

Related Minerals - Strunz-mindat GroupingHide

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Fluorescence of Hagendorfite-NaNaHide

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Not fluorescent in Ultraviolet light

Other InformationHide

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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 Hagendorfite-NaNaHide

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References for Hagendorfite-NaNaHide

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Localities for Hagendorfite-NaNaHide

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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.