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Epiebnerite

A valid IMA mineral species

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Edit Add Synonym Edit CIF structures Clear Cache

Formula:

(NH₄)Zn(PO₄)

Colour:

colorless

Lustre:

Vitreous

Hardness:

Specific Gravity:

2.851 (Calculated)

Crystal System:

Monoclinic

Name:

the name concerns its dimorphous relation with ebnerite

Type Locality:

ⓘ Rowley Mine, Theba, Painted Rock Mining District, Painted Rock Mountains, Maricopa County, Arizona, USA

Dimorph of:

Ebnerite

This page provides mineralogical data about Epiebnerite.

Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:

470939

Long-form identifier:

mindat:1:1:470939:4

GUID
(UUID V4):

fa30279a-ff05-4f4a-8c2c-8c2f13e15b41

IMA Classification of EpiebneriteHide

IMA status:

Approved, Pending publication

Approval year:

2023

Approval history:

For epi- and John C. Ebner Jr. (b. 1931), micromounter

Classification of EpiebneriteHide

Strunz-mindat (2024):

8.AC.

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

Mineral SymbolsHide

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

Symbol	Source	Reference
Epb	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of EpiebneriteHide

Lustre:

Vitreous

Colour:

colorless

Streak:

white

Hardness:

2 on Mohs scale

Comment:

estimated

Tenacity:

Brittle

Density:

2.851 g/cm³ (Calculated)

Chemistry of EpiebneriteHide

Mindat Formula:

(NH₄)Zn(PO₄)

Elements listed:

H, N, O, P, Zn - search for minerals with similar chemistry

Crystallography of EpiebneriteHide

Crystal System:

Monoclinic

Class (H-M):

2 - Sphenoidal

Space Group:

P2₁

Setting:

P2₁

Cell Parameters:

a = 8.796(16) Å, b = 5.457(16) Å, c = 8.960(16) Å
β = 90.34(6)°

Ratio:

a:b:c = 1.612 : 1 : 1.642

Unit Cell V:

430.07 Å³ (Calculated from Unit Cell)

Twinning:

Synthetic crystals are reported to exhibit both racemic and rotational twinning

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
6.25 Å	(60)
4.643 Å	(48)
4.406 Å	(50)
3.195 Å	(100)
2.776 Å	(32)
2.723 Å	(38)
2.601 Å	(33)
2.233 Å	(39)

Type Occurrence of EpiebneriteHide

Type Locality:

ⓘ Rowley Mine, Theba, Painted Rock Mining District, Painted Rock Mountains, Maricopa County, Arizona, USA

General Appearance of Type Material:

prisms or blades, up to about 10 x 3 x 2 μm, in parallel growth forming ribs with serrated edges epitactic on ebnerite prisms or forming epimorphs after ebnerite

Place of Conservation of Type Material:

Cotype material is deposited in the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 76294, 76295, 76296 and 76297

Geological Setting of Type Material:

In bat guano

Associated Minerals at Type Locality:

Ebnerite	Baryte	Quartz	Hematite	Wulfenite
Struvite	Sampleite	Newberyite	Mimetite	Halite
Alunite

Related Minerals - Strunz-mindat Grouping Hide

8.AC.	Angarfite	NaFe³⁺₅(PO₄)₄(OH)₄ · 4H₂O	Orth. 2 2 2 : C2 2 2₁
8.AC.	Wopmayite	Ca₆Na₃◻Mn(PO₄)₃(PO₃OH)₄	Trig. 3m : R3c
8.AC.X	Dyrnaesite-(La)	Na₈Ce⁴⁺(La,REE)₂(PO₄)₆	Orth. mmm (2/m 2/m 2/m) : Pnma
8.AC.	Edtollite	K₂NaCu₅Fe³⁺O₂(AsO₄)₄	Tric. 1 : P1
8.AC.	Alumoedtollite	K₂NaCu₅AlO₂(AsO₄)₄	Tric. 1 : P1
8.AC.	Crocobelonite	CaFe³⁺₂O(PO₄)₂	Orth. mmm (2/m 2/m 2/m) : Pnma
8.AC.	Manganobadalovite	NaNaMn(MgFe³⁺)(AsO₄)₃	Mon. 2/m : B2/b
8.AC.	Beershevaite	CaFe³⁺₃(PO₄)₃O	Mon. 2/m : P2₁/m
8.AC.	Calciohatertite	NaNaCa(CaFe³⁺)(AsO₄)₃	Mon. 2/m : B2/b
8.AC.	Kabalovite	Fe²⁺₃Fe³⁺₄(PO₄)₆	Tric. 1 : P1
8.AC.	Nazarchukite	Ca₂NiFe³⁺₂(PO₄)₄	Orth. mmm (2/m 2/m 2/m) : Pbca
8.AC.	Changesite–(Y)	(Ca₈Y)◻Fe²⁺(PO₄)₇	Trig. 3m : R3c
8.AC.	Crocobelonite-1M	CaFe³⁺₂O(PO₄)₂	Mon. 2/m : P2₁/m
8.AC.	Ebnerite	(NH₄)Zn(PO₄)	Hex. 6 : P6₃
8.AC.	Magnesioqingheiite	Na₂Mg(MgAl)(PO₄)₃	Mon. 2/m
8.AC.02	Grigorievite	Cu₃Fe³⁺₂Al₂(VO₄)₆	Tric. 1 : P1
8.AC.02	Koksharovite	CaMg₂Fe³⁺₄(VO₄)₆	Tric. 1 : P1
8.AC.02	Ziminaite	Fe³⁺ ₆ (VO₄)₆	Tric. 1 : P1
8.AC.05	Calciojohillerite	NaCaMg₃(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Howardevansite	NaCuFe₂(VO₄)₃	Tric. 1 : P1
8.AC.05	O'Danielite	Na(Zn,Mg)₃(AsO₄)(AsO₃OH)₂	Mon. 2/m : B2/b
8.AC.05 va	Alluaudite-Na□	◻₄Na₄Mn²⁺₄Fe³⁺₈(PO₄)₁₂	Mon. 2/m : B2/b
8.AC.05 va	Alluaudite-Ca□	◻₄Ca₄Mn²⁺₄Fe³⁺₈(PO₄)₁₂	Mon. 2/m : B2/b
8.AC.05 va	Ferroalluaudite-NaNa	Na₄Na₄Fe²⁺₄Fe³⁺₈(PO₄)₁₂	Mon. 2/m : B2/m
8.AC.05	Hagendorfite-NaNa	NaNaFe²⁺(Mn²⁺,Mn³⁺)(PO₄)₃ (?)	Mon. 2/m : B2/b
8.AC.05	Erikapohlite	Cu₃(Zn,Cu,Mg)₄Ca₂(AsO₄)₆ · 2H₂O	Mon. 2/m : B2/m
8.AC.05	Hatertite	Na₂(Ca,Na)(Fe³⁺,Cu)₂(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Unnamed (Na-Mg Arsenate Hydroxyarsenate)	NaMg₃(AsO₄)(AsO₃OH)₂	Mon. 2/m : B2/b
8.AC.05	Unnamed (Na-Zn-H Arsenate Hydrxyarsenate)	Na(Na_0.6Zn_0.4)Zn₂(H_0.6AsO₄)(AsO₃OH)₂	Mon. 2/m : B2/b
8.AC.05	Zincobradaczekite	NaZn₂Cu₂(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Badalovite	Na₂Mg₂Fe(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Magnesiocanutite	NaMnMg₂[AsO₄]₂[AsO₂(OH)₂]	Mon. 2/m : B2/b
8.AC.05	Magnesiohatertite	(Na,Ca)₂Ca(Mg,Fe³⁺)₂(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Khrenovite	Na₃Fe³⁺₂(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Paraberzeliite	NaCa₂Mg₂(AsO₄)₃	Mon. 2/m : B2/b
8.AC.05	Camanchacaite	NaCaMg₂[AsO₄][AsO₃(OH)]₂	Mon. 2/m : B2/b
8.AC.05	Manganohatertite	NaNaCa(MnFe³⁺)(AsO₄)₃	Mon. 2/m : B2/b
8.AC.07	Zhanghuifenite	Na₃Mn₄Mg₂Al(PO₄)₆	Mon. 2/m
8.AC.07	Ferrobobfergusonite	Na₂Fe²⁺₅Fe³⁺Al(PO₄)₆	Mon.
8.AC.10	Alluaudite	(Na,Ca)Mn²⁺(Fe³⁺,Mn²⁺,Fe²⁺,Mg)₂(PO₄)₃	Mon. 2/m : B2/b
8.AC.10	Arseniopleite	NaCaMnMn₂(AsO₄)₃	Mon. 2/m
8.AC.10	Caryinite	(Na,Pb)(Ca,Na)CaMn²⁺₂(AsO₄)₃	Mon. 2/m
8.AC.10	Ferroalluaudite	(Na,Ca)Fe²⁺(Fe³⁺,Mn²⁺,Fe²⁺)₂(PO₄)₃	Mon. 2/m : B2/b
8.AC.10	Hagendorfite	NaCaMn²⁺Fe²⁺₂(PO₄)₃	Mon. 2/m : B2/b
8.AC.10	Johillerite	Na(Mg,Zn)₃Cu(AsO₄)₃	Mon. 2/m : B2/b
8.AC.10	Maghagendorfite	(Na,◻)MgMn²⁺(Fe²⁺,Fe³⁺)₂(PO₄)₃	Mon. 2/m
8.AC.10	Nickenichite	Na_0.8Ca_0.4Cu_0.4(Mg,Fe)₃(AsO₄)₃	Mon. 2/m : B2/b
8.AC.10	Varulite	NaCaMn²⁺Mn²⁺₂(PO₄)₃	Mon. 2/m : B2/b
8.AC.10	Ferrohagendorfite	NaCaFe²⁺Fe²⁺₂(PO₄)₃	Mon.
8.AC.10	Bradaczekite	NaCu₄(AsO₄)₃	Mon. 2/m : B2/b
8.AC.10	Groatite	NaCaMn₂(PO₄)[PO₃(OH)]₂	Mon. 2/m : B2/b
8.AC.15	Bobfergusonite	Na₂Mn₅FeAl(PO₄)₆	Mon. 2/m : P2/b
8.AC.15	Ferrowyllieite	(Na,Ca,Mn)(Fe,Mn)(Fe,Fe,Mg)Al(PO₄)₃	Mon. 2/m : P2₁/b
8.AC.15	Qingheiite	NaNaMn²⁺(MgAl)(PO₄)₃	Mon. 2/m : P2₁/b
8.AC.15	Rosemaryite	(Na,Ca,Mn)(Mn,Fe²⁺)(Fe³⁺,Mg)Al(PO₄)₃	Mon. 2/m : P2₁/b
8.AC.15	Wyllieite	(Na,Ca,Mn)(Mn,Fe)(Fe,Mg)Al(PO₄)₃	Mon. 2/m
8.AC.15	Ferrorosemaryite	◻NaFe²⁺Fe³⁺Al(PO₄)₃	Mon. 2/m
8.AC.15	Ferroqingheiite	NaNaFe²⁺(MgAl)(PO₄)₃	Mon. 2/m : P2₁/m
8.AC.17	Czochralskiite	Na₄Ca₃Mg(PO₄)₄	Orth. mmm (2/m 2/m 2/m) : Pnma
8.AC.18	Manitobaite	Na₁₆Mn²⁺ ₂₅Al₈(PO₄)₃₀	Mon. m : Pb
8.AC.20	Marićite	NaFe²⁺(PO₄)	Orth. mmm (2/m 2/m 2/m) : Pmna
8.AC.25	Berzeliite	(NaCa₂)Mg₂(AsO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25	Manganberzeliite	(NaCa₂)Mn²⁺₂(AsO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25	Palenzonaite	(NaCa₂)Mn²⁺₂(VO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25	Schäferite	(NaCa₂)Mg₂(VO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
8.AC.25	Hedegaardite	(Ca,Na)₉(Ca,Na)Mg(PO₄)₆(PO₃OH)	Trig. 3m : R3c
8.AC.25	Matyhite	Ca₁₈(Ca,◻)₂Fe²⁺₂(PO₄)₁₄	Trig. 3m : R3c
8.AC.30	Brianite	Na₂CaMg(PO₄)₂	Mon. 2/m : P2₁/b
8.AC.35	Vitusite-(Ce)	Na₃(Ce,La,Nd)(PO₄)₂	Orth. mm2 : Pca2₁
8.AC.40	Olgite	(Sr,Ba)(Na,Sr,REE)₂Na(PO₄)₂	Trig. 3m (3 2/m) : P3m1
8.AC.40	Bario-olgite	(Ba,Sr)(Na,Sr,REE)₂Na(PO₄)₂ ·	Trig. 3 : P3
8.AC.45	Strontiowhitlockite	Sr₉Mg(PO₄)₆(PO₃OH)	Trig. 3m : R3c
8.AC.45	Whitlockite	Ca₉Mg(PO₄)₆(PO₃OH)	Trig. 3m : R3c
8.AC.45	Merrillite	Ca₉NaMg(PO₄)₇	Trig. 3m : R3m
8.AC.45	Tuite	Ca₃(PO₄)₂	Trig. 3m (3 2/m) : R3m
8.AC.45	Ferromerrillite	Ca₉NaFe²⁺(PO₄)₇	Trig. 3m : R3c
8.AC.47	Iwateite	Na₂BaMn(PO₄)₂	Trig. 3 : P3
8.AC.47	Yurmarinite	Na₇(Fe³⁺,Mg,Cu)₄(AsO₄)₆	Trig. 3m (3 2/m) : R3c
8.AC.47	Ozerovaite	Na₂KAl₃(AsO₄)₄	Orth. mmm (2/m 2/m 2/m) : Cmca
8.AC.47	Anatolyite	Na₆(Ca,Na)(Mg,Fe³⁺)₃Al(AsO₄)₆	Trig. 3m (3 2/m) : R3c
8.AC.47	Pansnerite	K₃Na₃(Fe³⁺,Al)₆(AsO₄)₈	Orth. mmm (2/m 2/m 2/m)
8.AC.50	Chladniite	Na₃CaMg₁₁(PO₄)₉	Trig. 3 : R3
8.AC.50	Fillowite	Na₃CaMn²⁺₁₁(PO₄)₉	Trig. 3 : R3
8.AC.50	Johnsomervilleite	Na₃CaFe₁₁(PO₄)₉	Trig. 3 : R3
8.AC.50	Galileiite	Na₃Fe²⁺Fe²⁺₁₁(PO₄)₉	Trig. 3 : R3
8.AC.50	Xenophyllite	Na₄Fe²⁺₇(PO₄)₆	Tric. 1 : P1
8.AC.50	Udinaite	NaMg₄(VO₄)₃	Tet. 4 2m : I4 2d
8.AC.50	Arsenudinaite	NaMg₄(AsO₄)₃	Tet. 4 2m : I4 2d
8.AC.52	Lasnierite	(Ca,Sr)(Mg,Fe²⁺)₂Al(P[O,F]₄)₃	Orth. mmm (2/m 2/m 2/m) : Pbcn
8.AC.55	Pharmazincite	KZnAsO₄	Hex. 6 : P6₃
8.AC.57	Zubkovaite	Ca₃Cu₃(AsO₄)₄	Mon. 2 : B2
8.AC.60	Kosnarite	KZr₂(PO₄)₃	Trig. 3m (3 2/m) : R3c
8.AC.65	Panethite	(Na,Ca)₂(Mg,Fe²⁺)₂(PO₄)₂	Mon. 2/m : P2₁/b
8.AC.70	Stanfieldite	Ca₄Mg₅(PO₄)₆	Mon.
8.AC.75	Ronneburgite	K₂MnV₄O₁₂	Mon. 2/m
8.AC.80	Tillmannsite	Ag₃Hg[(V,As)O₄]	Tet. 4 : I4
8.AC.85	Filatovite	K(Al,Zn)₂(As,Si)₂O₈	Mon. 2/m

Other InformationHide

Notes:

At room-temperature, epiebnerite is insoluble in H2O, but easily soluble in dilute HCl.

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 EpiebneriteHide

mindat.org URL:

https://www.mindat.org/min-470939.html
Please feel free to link to this page.

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

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References for EpiebneriteHide

Reference List:

http://forum.amiminerals.it/viewtopic.php?f=5&t=19103

Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2023) Newsletter 76. Mineralogical Magazine, 1-5 doi:10.1180/mgm.2023.89

Kampf, Anthony R., Gu, Xiangping, Yang, Hexiong, Ma, Chi, Marty, Joe (2024) Ebnerite and epiebnerite: NH4ZnPO4 dimorphs with zeolite-type frameworks from the Rowley mine, Arizona, USA. Mineralogical Magazine, 1-23 doi:10.1180/mgm.2024.15

Localities for EpiebneriteHide

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

- 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.

USA (TL)

Arizona

Maricopa County

Painted Rock Mountains

Painted Rock Mining District

Theba

ⓘ Rowley Mine (TL)

Bosi et al. (2023)

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