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Heneuite

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Tingelstadtjern Quarry, Modum, Buskerud, Norway
© Peter Andresen

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Formula:
CaMg
 
5
(CO
 
3
)(PO
 
4
)
 
3
(OH)
System:TriclinicColour:Pale blue-green, pale ...
Hardness:5½
Name:In honour of Professor Henrich Neumann (1914–1983), Mineralogical-Geological Museum, University of Oslo, Oslo, Norway


As cleavable, pale blue green, nodular masses several cm across. The nodules are rimmed by a thin layer of althausite, which in turn is surrounded by massive apatite.

Classification of Heneuite

IMA status:Approved
Strunz 8th edition ID:7/B.22-10
Nickel-Strunz 10th (pending) edition ID:8.BO.25

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
O : With only large cations, (OH, etc.):RO4 about 1:1
Dana 8th edition ID:43.4.11.1

43 : COMPOUND PHOSPHATES, ETC.
4 : Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:22.4.6

22 : Phosphates, Arsenates or Vanadates with other Anions
4 : Phosphates, arsenates or vanadates with carbonate
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Type Occurrence of Heneuite

Type Locality:Tingelstadtjern Quarry, Modum, Buskerud, Norway
General Appearance of Type Material:Cleavable nodular masses
Place of Conservation of Type Material:The Natural History Museum, University of Oslo
Year of Discovery:1982
Geological Setting of type material:Serpentine–magnesite deposit within a regional metamorphic terrain.
Associated Minerals at type locality:
Serpentine GroupMagnesiteApatiteAlthausite

Physical Properties of Heneuite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Pale blue-green, pale greenish
Streak:White
Hardness (Mohs):5½
Hardness Data:Measured
Tenacity:Brittle
Cleavage:Distinct/Good
on {001}

Crystallography of Heneuite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 6.3Å, b = 10.83Å, c = 8.67Å
α = 95.01°, β = 93.41°, γ = 101.03°
Ratio:a:b:c = 0.582 : 1 : 0.801
Unit Cell Volume:V 576.64 ų (Calculated from Unit Cell)
Morphology:Cleavable nodular masses.
X-Ray Powder Diffraction:
d-spacingIntensity
3.67 (40)
2.70 (100)
2.87 (90)
2.845 (40)
2.836 (42)
2.79 (80)
2.60 (37)

Optical Data of Heneuite

Type:Biaxial (-)
RI values: nα = 1.586 nβ = 1.620 nγ = 1.630
2V:Measured: 50° to 56°, Calculated: 54°
Maximum Birefringence:δ = 0.044

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:small

Chemical Properties of Heneuite

Formula:
CaMg
 
5
(CO
 
3
)(PO
 
4
)
 
3
(OH)
Essential elements:C, Ca, H, Mg, O, P
All elements listed in formula:C, Ca, H, Mg, O, P

Relationship of Heneuite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.BO.05Nacaphite
Na
 
2
Ca(PO
 
4
)F
8.BO.10Preisingerite
Bi
 
3
(AsO
 
4
)
 
2
O(OH)
8.BO.10Petitjeanite
Bi
 
3
(PO
 
4
)
 
2
O(OH)
8.BO.10Schumacherite
Bi
 
3
(VO
 
4
)
 
2
O(OH)
8.BO.15Atelestite
Bi
 
2
(AsO
 
4
)O(OH)
8.BO.15Hechtsbergite
Bi
 
2
(VO
 
4
)O(OH)
8.BO.15Smrkovecite
Bi
 
2
(PO
 
4
)O(OH)
8.BO.20Kombatite
Pb
 
14
(VO
 
4
)
 
2
O
 
9
Cl
 
4
8.BO.20Sahlinite
Pb
 
14
(AsO
 
4
)
 
2
O
 
9
Cl
 
4
8.BO.30Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
8.BO.35Kuznetsovite
(Hg
+
2
)Hg
2+
 
(AsO
 
4
)Cl
8.BO.40Artsmithite
(Hg
+
2
)
 
2
Al(PO
 
4
)
 
1.74
(OH)
 
1.78
8.BO.45Schlegelite
Bi
 
7
(AsO
 
4
)
 
3
(MoO
 
4
)
 
2
O
 
4
Related Minerals - Hey's Index Grouping:

- +
22.4.1Bradleyite
Na
 
3
Mg(CO
 
3
)(PO
 
4
)
22.4.2Kovdorskite
Mg
 
2
(PO
 
4
)(OH) · 3H
 
2
O
22.4.3Carbonate-rich Hydroxylapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(OH,O)
22.4.4Carbonate-rich Fluorapatite
Ca
 
5
(PO
 
4
,CO
 
3
)
 
3
(F,O)
22.4.5Tyrolite
Ca
 
2
Cu
 
9
(AsO
 
4
)
 
4
(CO
 
3
)(OH)
 
4
 · 11-12H
 
2
O
22.4.7Girvasite
NaCa
 
2
Mg
 
3
(PO
 
4
)
 
2
(H
 
2
PO
 
4
)(CO
 
3
)(OH)
 
2
 · 4H
 
2
O
22.4.8Daqingshanite-(Ce)
(Sr,Ca,Ba)
 
3
(Ce,La)(CO
 
3
)
 
3-x
(PO
 
4
)(OH,F)
 
2x
22.4.9Gartrellite
Pb(Cu,Fe
3+
 
,Zn)
 
2
(AsO
 
4
,SO
 
4
)
 
2
 · 2(H
 
2
O,OH)
22.4.10Voggite
Na
 
2
Zr(PO
 
4
)(CO
 
3
)(OH) · 2H
 
2
O
22.4.11Bonshtedtite
Na
 
3
Fe
2+
 
(CO
 
3
)(PO
 
4
)

Other Names for Heneuite

Synonyms:
IMA1983-057
Other Languages:
German:Heneuit
Russian:Хенеуит
Spanish:Heneuita

Other Information

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 Heneuite

Reference List:

- +
- Raade, G., Mladeck,M.H. and Din, V.K. (1986): Heneuite, CaMg5(CO3)(PO4)3(OH), a new mineral from Modum, Norway. Neues Jahrbuch für Mineralogie. Monatsh. 1986, h. 8, 343–350.

- American Mineralogist: 73: 440.

- Rømming, C. and G. Raade (1986) The crystal structure of heneuite, CaMg5(CO3)(PO4)3(OH). Neues Jahrbuch für Mineralogie, Monatshefte 1986, 351-359.

Internet Links for Heneuite

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    • Localities for Heneuite

    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.
    Norway
     
    • Buskerud
      • Modum
    		[AmMin 86:1536]; Raade, G., Mladeck, M. H. & Din, V.K. (1986): Heneuite, CaMg5(CO3)(PO4)3(OH), a new mineral from Modum, Norway. N. Jb. Miner. Mh. H. 8, 343-350
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