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Chlorophoenicite

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Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
© JBS 2006

Show Chlorophoenicite Photos (12)



Formula:
(Mn,Mg)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
System:MonoclinicColour:Usually colorless to ...
Hardness:3 - 3½
Name:From the Greek χλωρός for "green" and φοιυικος for "purple-red" in allusion to its color change from natural to artificial light.
Isostructural with:Magnesiochlorophoenicite


Manganese analogue of Magnesium-Chlorophoenicite.

Classification of Chlorophoenicite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/B.17-20
Nickel-Strunz 10th (pending) edition ID:8.BE.35

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1
Dana 8th edition ID:41.1.1.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p > 4:1
Hey's CIM Ref.:20.3.17

20 : Arsenates (also arsenates with phosphate, but without other anions)
3 : Arsenates of Zn, Cd or Hg
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Type Occurrence of Chlorophoenicite

Type Locality:Buckwheat Pit (Southwest Opening; Buckwheat Mine), Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
General Appearance of Type Material:Usually in acicular, white crystals. Sometimes in somewhat rod-like crystals with an acute rhombic cross-section and definite pyramidal terminations. Rarely may be pale grayish green when crystals are rod-like. Both acicular and rod-like crystals may show
Year of Discovery:1924
Geological Setting of type material:Secondary veinlets in massive ore in a metamorphosed Pre-cambrian sedimentary Zn-Fe-Mn deposit.
Associated Minerals at type locality:
ZinciteWillemiteTephroitePyrochroiteLeucophoenicite
GageiteFrankliniteCalcite

Physical Properties of Chlorophoenicite

Lustre:Sub-Vitreous, Silky
Diaphaneity (Transparency):Transparent
Comment:Pearly on the cleavage surfaces, but usually difficult to observe.
Colour:Usually colorless to white, also light gray-green (natural light); pink to light purplish red (strong artificial light)
Comment:White material common at the Sterling Mine and Franklin.
Streak:colorless
Hardness (Mohs):3 - 3½
Tenacity:Brittle
Cleavage:Distinct/Good
On {100}, good.
Fracture:Splintery
Density (measured):3.46 g/cm3

Crystallography of Chlorophoenicite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m {B1 1 2/m} {C2/m} {C1 2/m 1}
Cell Parameters:a = 22.97Å, b = 3.28Å, c = 7.31Å
β = 106.18°
Ratio:a:b:c = 7.003 : 1 : 2.229
Unit Cell Volume:V 528.93 ų (Calculated from Unit Cell)
Z:2
Morphology:Usually acicular. Crystals may be long prismatic [010] and deeply striated [010], with etched and dull terminal faces. Face {100} is relatively smooth while {h0l} faces are uneven or warped.
X-Ray Powder Diffraction:
d-spacingIntensity
6.87 (50)
3.71 (70)
3.11 (50)
2.99 (40)
2.64 (100)
2.43 (10)
1.822 (20)
1.758 (30)
Comments:25-1159

Optical Data of Chlorophoenicite

Type:Biaxial (-)
RI values: nα = 1.682 nβ = 1.690 nγ = 1.697
2V:Measured: 81° to 85°, Calculated: 84°
Birefringence:0.015
Maximum Birefringence:δ = 0.015

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v, relatively strong

Chemical Properties of Chlorophoenicite

Formula:
(Mn,Mg)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
Essential elements:As, H, Mn, O, Zn
All elements listed in formula:As, H, Mg, Mn, O, Zn

Relationship of Chlorophoenicite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BE.05Augelite
Al
 
2
(PO
 
4
)(OH)
 
3
8.BE.10Grattarolaite
Fe
3+
3
(PO
 
4
)O
 
3
8.BE.15Cornetite
Cu
 
3
(PO
 
4
)(OH)
 
3
8.BE.20Clinoclase
Cu
 
3
(AsO
 
4
)(OH)
 
3
8.BE.25Arhbarite
Cu
 
2
Mg(AsO
 
4
)(OH)
 
3
8.BE.25Gilmarite
Cu
 
3
(AsO
 
4
)(OH)
 
3
8.BE.30Allactite
Mn
2+
7
(AsO
 
4
)
 
2
(OH)
 
8
8.BE.30Flinkite
Mn
2+
2
Mn
3+
 
(AsO
 
4
)(OH)
 
4
8.BE.30Raadeite
Mg
 
7
(PO
 
4
)
 
2
(OH)
 
8
8.BE.30Argandite
Mn
 
7
(VO
 
4
)
 
2
(OH)
 
8
8.BE.35Magnesiochlorophoenicite
(Mg,Mn)
 
3
Zn
 
2
(AsO
 
4
)(OH,O)
 
6
8.BE.40Gerdtremmelite
(Zn,Fe)(Al,Fe)
 
2
(AsO
 
4
)(OH)
 
5
8.BE.45Dixenite
CuMn
2+
14
Fe
2+
 
(SiO
 
4
)
 
2
(As
5+
 
O
 
4
)(As
3+
 
O
 
3
)
 
5
(OH)
 
6
8.BE.45Hematolite
(Mn,Mg,Al)
 
15
(As
5+
 
O
 
4
)
 
2
(As
3+
 
O
 
3
)(OH)
 
23
8.BE.45Kraisslite
(Mn
2+
 
,Mg)
 
24
Zn
 
4
(SiO
 
4
)
 
8
(AsO
 
4
)
 
4
(OH)
 
12
8.BE.45Mcgovernite
Mn
 
19
Zn
 
3
(AsO
 
4
)
 
3
(AsO
 
3
)(SiO
 
4
)
 
3
(OH)
 
21
8.BE.45Arakiite
(Zn,Mn
2+
 
)(Mn
2+
 
,Mg)
 
12
(Fe
3+
 
,Al)
 
2
(As
5+
 
O
 
4
)
 
2
(As
3+
 
O
 
3
)(OH)
 
23
8.BE.45Turtmannite
(Mn,Mg)
 
22.5
Mg
 
3-3x
((V
5+
 
,As
5+
 
)O
 
4
)
 
3
(As
3+
 
O
 
3
)
 
x
(SiO
 
4
)
 
3
O
 
5-5x
(OH)
 
20+x
8.BE.50Synadelphite
Mn
2+
9
(As
5+
 
O
 
4
)
 
2
(As
3+
 
O
 
3
)(OH)
 
9
 · 2H
 
2
O
8.BE.55Holdenite
(Mn
2+
 
,Mg)
 
6
Zn
 
3
(AsO
 
4
)
 
2
(SiO
 
4
)(OH)
 
8
8.BE.60Kolicite
Mn
2+
7
Zn
 
4
(AsO
 
4
)
 
2
(SiO
 
4
)
 
2
(OH)
 
8
8.BE.65Sabelliite
(Cu,Zn)
 
2
Zn(AsO
 
4
,SbO
 
4
)(OH)
 
3
8.BE.70Jarosewichite
Mn
2+
3
Mn
3+
 
(AsO
 
4
)(OH)
 
6
8.BE.75Theisite
Cu
 
5
Zn
 
5
(AsO
 
4
,SbO
 
4
)
 
2
(OH)
 
14
8.BE.80Coparsite
Cu
 
4
(AsO
 
4
,VO
 
4
)O
 
2
Cl
8.BE.85Waterhouseite
Mn
2+
7
(PO
 
4
)
 
2
(OH)
 
8
Related Minerals - Hey's Index Grouping:

- +
20.3.1Adamite
Zn
 
2
(AsO
 
4
)(OH)
20.3.2Paradamite
Zn
 
2
(AsO
 
4
)(OH)
20.3.3Koritnigite
Zn(HAsO
 
4
) · H
 
2
O
20.3.4Legrandite
Zn
 
2
(AsO
 
4
)(OH) · H
 
2
O
20.3.5Warikahnite
Zn
 
3
(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.6Köttigite
Zn
 
3
(AsO
 
4
)
 
2
 · 8H
 
2
O
20.3.7Stranskiite
Zn
 
2
Cu(AsO
 
4
)
 
2
20.3.8Philipsburgite
(Cu,Zn)
 
6
(AsO
 
4
,PO
 
4
)
 
2
(OH)
 
6
 · H
 
2
O
20.3.9Austinite
CaZn(AsO
 
4
)(OH)
20.3.10Prosperite
CaZn
 
2
(AsO
 
4
)(HAsO
 
4
)(OH)
20.3.11Gaitite
Ca
 
2
Zn(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.12Zincroselite
Ca
 
2
Zn(AsO
 
4
)
 
2
 · 2H
 
2
O
20.3.13O'Danielite
Na(Zn,Mg)
 
3
H
 
2
(AsO
 
4
)
 
3
20.3.14Johillerite
Na(Mg,Zn)
 
3
Cu(AsO
 
4
)
 
3
20.3.15Holdenite
(Mn
2+
 
,Mg)
 
6
Zn
 
3
(AsO
 
4
)
 
2
(SiO
 
4
)(OH)
 
8
20.3.16Chudobaite
(Mg,Zn)
 
5
(AsO
 
4
)
 
2
(HAsO
 
4
)
 
2
 · 10H
 
2
O
20.3.18Lotharmeyerite
Ca(Zn,Mn
3+
 
)
 
2
(AsO
 
4
)
 
2
 · 2(H
 
2
O,OH)
20.3.19Metaköttigite
(Zn,Fe,Fe)
 
3
(AsO
 
4
)
 
2
 · 8(H
 
2
O,OH)
20.3.20Ojuelaite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
 · 4H
 
2
O
20.3.21Fahleite
Zn
 
5
CaFe
 
2
(AsO
 
4
)
 
6
 · 14H
 
2
O
20.3.22Keyite
Cu
2+
3
Zn
 
4
Cd
 
2
(AsO
 
4
)
 
6
 · 2H
 
2
O

Other Names for Chlorophoenicite

Other Languages:
German:Chlorophönizit
Chlorophoenicit
Russian:Хлорофеницит
Spanish:Chlorophoenicita

Other Information

Fluorescence in UV light:Not fluorescent.
Other Information:Soluble in acids.
Special Storage/
Display Requirements from:
Sterling Mine,..., Sussex Co., New Jersey, USAProtect due to fragility.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Chlorophoenicite

Reference List:

- +
Foshag and Gage (1924) Journal of the Washington Academy of Science: 14: 362.

Foshag, Berman, and Gage (1927) Proceedings of the U.S. National Museum: 70: Article 20.

Palache, C. (1935) USGS Professional Paper 180: 122.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 778-780.

Dunn, Pete J. (1981): Magnesium-chlorophoenicite redefined and new data on chlorophoenicite. Canadian Mineralogist 19, 333-336.

Internet Links for Chlorophoenicite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Chlorophoenicite details from Handbook of Mineralogy (PDF)
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    • Localities for Chlorophoenicite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District slag localities
          • Thorikos area
    		No reference listed
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 780; Albanese, J.S. (1967) Chlorophoenicite: Rocks & Minerals: 42: 888-889; Dunn, P.J. (1995): Part5: 665.
          • Ogdensburg
            • Sterling Hill
    		Palache, C. (1935) USGS Professional Paper 180:123; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 780; Dunn, P.J. (1995): Part 5: 665-666.
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