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Lorenzenite

Big Photo

Flora Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© 2002 John H. Betts

Show Lorenzenite Photos (42)
Formula:
Na
 
2
Ti
 
2
[O
 
3
|Si
 
2
O
 
6
]
System:OrthorhombicColour:Pale purple-brown, pale ...
Hardness:6
Name:For Johannes Theodor Lorenzen (1855-1884), Danish mineralogist
This page provides mineralogical data about Lorenzenite.

Classification of Lorenzenite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/F.03-50
Nickel-Strunz 10th (pending) edition ID:9.DB.10

9 : SILICATES (Germanates)
D : Inosilicates
B : Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
Dana 8th edition ID:65.1.6.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
1 : Single-Width Unbranched Chains, W=1 with chains P=2
Hey's CIM Ref.:14.9.2

14 : Silicates not Containing Aluminum
9 : Silicates of Ti
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Type Occurrence of Lorenzenite

Type Locality:Narssârssuk pegmatite (Narsarsuk pegmatite), Narssârssuk (Narsarsuk), Igaliku (Igaliko), Narsaq, Kitaa (West Greenland) Province, Greenland
Place of Conservation of Type Material:University of Copenhagen
Year of Discovery:1897

Occurrences of Lorenzenite

Geological Setting:Nepheline syenites and pegmatites

Physical Properties of Lorenzenite

Lustre:Adamantine, Vitreous, Sub-Metallic, Dull
Diaphaneity (Transparency):Transparent, Opaque
Colour:Pale purple-brown, pale pink to mauve, brown to black
Streak:White to pale brown
Hardness (Mohs):6
Cleavage:Distinct/Good
Distinct on {010}
Fracture:Irregular/Uneven
Density (measured):3.42 - 3.45 g/cm3
Density (calculated):3.44 g/cm3

Crystallography of Lorenzenite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pbcn (P21/b 2/c 21/n)
Cell Parameters:a = 8.71Å, b = 5.23Å, c = 14.48Å
Ratio:a:b:c = 1.665 : 1 : 2.769
Unit Cell Volume:V 659.61 ų (Calculated from Unit Cell)
Z:4
Morphology:Equant, bladed prismatic to needlelike
Crystal Atlas:
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Lorenzenite no.1 - Goldschmidt (1913-1926)
Lorenzenite no.2 - Goldschmidt (1913-1926)
Lorenzenite no.3 - Goldschmidt (1913-1926)

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Optical Data of Lorenzenite

Type:Biaxial (-)
RI values: nα = 1.910 - 1.950 nβ = 2.010 - 2.040 nγ = 2.030 - 2.060
2V:Measured: 38° to 41°, Calculated: 34°
Maximum Birefringence:δ = 0.120

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v distinct
Pleochroism:Weak
Comments:X=Y= pale reddish yellow, yellowish brown to light brown
Z= pale yellow, brownish to dark brown

Chemical Properties of Lorenzenite

Formula:
Na
 
2
Ti
 
2
[O
 
3
|Si
 
2
O
 
6
]
Essential elements:Na, O, Si, Ti
All elements listed in formula:Na, O, Si, Ti
Common Impurities:Zr,Al,Y,TR,La,Ce,Fe,Nb,Mn,Ca,Sr,F,H2O

Relationship of Lorenzenite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.DB.05Balipholite
BaLiMg
 
2
Al
 
3
[(OH)
 
4
|Si
 
2
O
 
6
]
 
2
9.DB.05Carpholite
Mn
2+
 
Al
 
2
[(OH)
 
4
|Si
 
2
O
 
6
]
9.DB.05Ferrocarpholite
(Fe
2+
 
,Mg)Al
 
2
[(OH)
 
4
|Si
 
2
O
 
6
]
9.DB.05Magnesiocarpholite
(Mg,Fe
2+
 
)Al
 
2
[(OH)
 
4
|Si
 
2
O
 
6
]
9.DB.05Potassiccarpholite
(K,[])(Li,Mn
2+
 
)
 
2
Al
 
4
[(OH)
 
4
 ׀ (F,OH)
 
4
 ׀ (Si
 
2
O
 
6
)
 
2
]
9.DB.05Vanadiocarpholite
Mn
2+
 
V
3+
 
Al[(OH)
 
4
|Si
 
2
O
 
6
]
9.DB.15Lintisite
LiNa
 
3
Ti
 
2
[O|Si
 
2
O
 
6
]
 
2
 · 2H
 
2
O
9.DB.20Kukisvumite
Na
 
6
ZnTi
 
4
Si
 
8
O
 
28
·4H
 
2
O
9.DB.20Manganokukisvumite
Na
 
6
MnTi
 
4
Si
 
8
O
 
28
·4H
 
2
O
9.DB.25Vinogradovite
(Na,Ca,K)
 
4
Ti
 
4
AlSi
 
6
O
 
23
(OH)·2H
 
2
O
9.DB.25Paravinogradovite
Na
 
1-2
(Ti,Fe
3+
 
)
 
4
[(OH)
 
4
|AlSi
 
3
O
 
10
|(Si
 
2
O
 
6
)
 
2
] · H
 
2
O
9.DB.30Nchwaningite
Mn
2+
2
[(OH)
 
2
|SiO
 
3
] · H
 
2
O
9.DB.35Plancheite
Cu
 
8
[(OH)
 
4
|Si
 
8
O
 
22
] · H
 
2
O
9.DB.40Shattuckite
Cu
 
5
[(OH)
 
2
|(SiO
 
3
)
 
4
]
9.DB.45Aerinite
Ca
 
5
(Fe
3+
 
,Al,Fe
2+
 
,Mg)(Al,Mg)
 
6
[HSi
 
12
O
 
36
(OH)
 
12
][(CO
 
3
)
 
1.2
(H
 
2
O)
 
12
Related Minerals - Hey's Index Grouping:
14.9.1Natisite
Na
 
2
Ti[O|SiO
 
4
]
14.9.3Lintisite
LiNa
 
3
Ti
 
2
[O|Si
 
2
O
 
6
]
 
2
 · 2H
 
2
O
14.9.4Davanite
K
 
2
TiSi
 
6
O
 
15
14.9.5Kazakovite
Na
 
6
Ti[Si
 
6
O
 
16
(OH)
 
2
]
14.9.6Titanite
CaTi[O|SiO
 
4
]
14.9.7Ohmilite
Sr
 
3
(Ti,Fe
3+
 
)[(O,OH)|(Si
 
2
O
 
6
)
 
2
] · 2-3H
 
2
O
14.9.8Lamprophyllite
(Sr,K,Ba)
 
2
(Na,Ti,Mn
2+
 
,Fe
3+
 
)
 
4
Ti
 
2
[O|(O,OH,F)|Si
 
2
O
 
7
]
 
2
14.9.9Benitoite
BaTi[Si
 
3
O
 
9
]
14.9.10Batisite
Na
 
2
BaTi
 
2
[O|Si
 
2
O
 
6
]
 
2
14.9.11Fresnoite
Ba
 
2
Ti[O|Si
 
2
O
 
7
]
14.9.12Joaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(OH,F) · H
 
2
O
14.9.13Orthojoaquinite-(Ce)
Ba
 
2
NaCe
 
2
FeTi
 
2
Si
 
8
O
 
26
(O,OH) · H
 
2
O
14.9.14Strontiojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
14.9.15Bario-orthojoaquinite
(Ba,Sr)
 
4
Fe
 
2
Ti
 
2
Si
 
8
O
 
26
·H
 
2
O
14.9.16Strontio-orthojoaquinite
Sr
 
2
Ba
 
2
(Na,Fe)
 
2
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
2
·H
 
2
O
14.9.17Bafertisite
Ba(Fe
3+
 
,Mn
2+
 
)
 
2
Ti[O|(O,OH)
 
2
|Si
 
2
O
 
7
]
14.9.18Hejtmanite
Ba(Mn
2+
 
,Fe
2+
 
)
 
2
Ti[O|(OH,F)
 
2
|Si
 
2
O
 
7
]
14.9.19Delindeite
(Na,K)
 
2.7
(Ba,Ca)
 
4
(Ti,Fe,Al)
 
6
Si
 
8
O
 
26
(OH)
 
14
14.9.20Barytolamprophyllite
(Ba,Na)
 
2
(Na,Ti,Fe
3+
 
)
 
4
Ti
 
2
[O|(OH,F)|Si
 
2
O
 
7
]
 
2
14.9.21Trimounsite-(Y)
Y
 
2
Ti
 
2
[O
 
5
|SiO
 
4
]
14.9.22Perrierite-(Ce)
(Ce,Ca,Th)
 
4
(Mg,Fe
2+
 
)
 
2
(Ti,Fe
3+
 
)
 
3
[O
 
4
|Si
 
2
O
 
7
]
 
2
14.9.23Chevkinite
(Ca,Ce,Th)
 
4
(Fe,Mn)
 
2
(Ti,Fe)
 
3
Si
 
4
O
 
22
14.9.24Strontiochevkinite
(Sr,La,Ce,Ca)
 
4
Fe
3+
 
(Ti,Zr)
 
2
Ti
 
2
[O
 
4
|Si
 
2
O
 
7
]
 
2
14.9.25Tisinalite
Na
 
3
H
 
3
(Mn,Ca,Fe)TiSi
 
6
(O,OH)
 
18
·2H
 
2
O
14.9.26Neptunite
Na
 
2
KLi(Fe
2+
 
,Mn
2+
 
)
 
2
Ti
 
2
[Si
 
8
O
 
24
]
14.9.27Manganoneptunite
Na
 
2
KLi(Mn
2+
 
,Fe
2+
 
)
 
2
Ti
 
2
[Si
 
8
O
 
24
]
14.9.28Kupletskite
(K,Na)
 
3
(Mn,Fe)
 
7
Ti
 
2
Si
 
8
O
 
26
(OH)
 
4
F
14.9.29Astrophyllite
(K,Na)
 
3
(Fe,Mn)
 
7
Ti
 
2
Si
 
8
O
 
24
(O,OH)
 
7
14.9.30Hydroastrophyllite
(H
 
3
O,K,Ca)
 
3
(Fe,Mn)
 
5-65
Ti
 
2
Si
 
8
(O,OH)
 
31
14.9.31Magnesioastrophyllite
(Na,K)
 
4
Mg
 
2
(Fe,Fe,Mn)
 
5
Ti
 
2
Si
 
8
O
 
24
(O,OH,F)
 
7
14.9.32Baratovite
KCa
 
7
(Ti,Zr)
 
2
Li
 
3
Si
 
12
O
 
36
F
 
2
14.9.34Aenigmatite
Na
 
2
Fe
2+
5
TiO
 
2
]Si
 
6
O
 
18
]
14.9.35Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
,Fe
2+
 
)O
 
4
]
 
3
14.9.36Tinaksite
K
 
2
Na(Ca,Mn
2+
 
)
 
2
Ti[O|Si
 
7
O
 
18
(OH)]
14.9.37Janhaugite
(Na,Ca)
 
3
(Mn,Fe)
 
3
(Ti,Zr,Nb)
 
2
Si
 
4
O
 
15
(OH,F,O)
 
3
14.9.38Koashvite
Na
 
6
(Ca,Mn)(Ti,Fe)Si
 
6
O
 
18
·H
 
2
O

Other Names for Lorenzenite

Synonyms:
RamsayiteRamzaiteUnnamed (MSH UK-1)Unnamed (MSH UK-16)Unnamed (MSH UK-7)
German names:
LorenzenitRamsayitRamzait
Russian names:
Лоренценит
Spanish names:
LorenzenitaRamsayitaRamzaita

Other Information

Fluorescence in UV light:Pale yellow to dull green in SW
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 Lorenzenite

Reference List:American Mineralogist (1947): 32: 59-63.

American Mineralogist (1987): 72: 173-177.

Internet Links for Lorenzenite

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  • Raman and XRD data at RRUFF project
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    Localities for Lorenzenite

    Hide Locality List
    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.
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    (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.
    Canada
     
    • British Columbia
      • Golden Mining Division
    		No reference listed
    • Newfoundland and Labrador
      • Labrador
    • Québec
      • Rouville Co.
        • Mont Saint-Hilaire
    		Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359., AmMin 72:173-177(1987)
      • Verchères Co.
        • Varennes & St-Amable
          • Saint-Amable sill
    		Mineralogical Record: 29: 83.
    Germany
     
    • Baden-Württemberg
      • Odenwald
        • Eberbach
          • Katzenbuckel Mt.
    		Stahle, V., Koch, M., McCammon, C. A., Mann, U. & Markl, G. (2002): Occurrence of low-Ti and high-Ti freudenbergite in alkali syenite dikes from the Katzenbuckel volcano, southwestern Germany. Canadian Mineralogist 40, 1609-1627.
    • Rhineland-Palatinate
      • Eifel Mts
        • Mayen
          • Ettringen
    		Blass, G., Graf, H.W., Kolitsch, U., Sebold, D., Neue Funde aus der Vulkaneifel , Mineralien-Welt 15/3, 58-69, 2004
    Greenland
     
    • Kitaa (West Greenland) Province
      • Narsaq
        • Igaliku (Igaliko)
          • Narssârssuk (Narsarsuk)
    		Meddr Gronland,(1899) 24, p. 130; Petersen Ole V.,Secher K.(1985) - Gronland: Mineralien, Geologie, Geschichte. - Verlag Bode & Partner K.G., Bochum, 87 pagg.
    No reference listed
    • Tunu (East Greenland) Province
      • Kangerlussuaq Firth
        • Kangerlussuaq complex
    		MinRec 16:485-494
    Norway
     
    • Oppland
      • Lunner
        • Nordmarka
    		Raade.G.& Haug,J.(1982): "Gjerdingen. Fundstelle seltener Mineralien in Norwegen". LAPIS 7, 9-15
    • Vestfold
      • Larvik
        • Farris
        • Lågendalen
    		Larsen, A. O., Raade, G. & Sæbø, P. C. (1992): Lorenzenite from the Bratthagen nepheline syenite pegmatites, Lågendalen, Oslo Region, Norway. Norsk Geologisk Tidsskrift, 72, 381-384.
        • Langesundsfjorden
    		Raade, G. (1967): Ramsayite as an alteration product of mosandrite. Norsk Geologisk Tidsskrift 47: 249-250
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Aldan
          • Torgo River Basin
            • Davan
              • Chara River (Charo River)
    		[Lapis 1993:4 p.13-20]
          • Yakokut Massif
      • Transbaikalia (Zabaykalye)
        • Buriatia (Buryatia) Republic
          • Mama River Basin
            • Maigunda River
    		[MinRec 32:42]
      • Tuva Republic
        • Sangilen Upland
    		Kapustin, Y. L., & Bykova, A. V. (1965). First find of hiortdahlite in the USSR. Doklady Akad. Nauk SSSR, 161, 121-124.
    • Far-Eastern Region
      • Khabarovskiy Kray
        • Ayan-Maya district
          • Aldan shield
    		www.koeln.netsurf.de/~w.steffens/aldan.htm.
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    		[World of Stones 95:5-6, p64]
            • Kukisvumchorr Mt
              • Kirovskii apatite mine (Kirovsky Mine; Kirov Mine)
    		American Mineralogist, Volume 92, pages 1525-1530, 2007
    http://maurice.strahlen.org/kola/khibiny.htm
            • Yukspor Mt.
    		P.M. Kartashov data
          • Lovozero Massif
            • Alluaiv Mt
              • Umbozero Mine
            • Chinglusuai River Valley
    [World of Stones 95:5-6, p64]
            • Karnasurt Mt
    Zap. Vseross. Mineral. Obshch., 130(6), 63–67
    American Mineralogist: 90: 1467-1468.
            • Seidozero Lake
    Pavel M. Kartashov data
    [MinRec 32:416]
            • Tyul'bnyunuai River Valley
    www.koeln.netsurf.de/~w.steffens/vuori.htm
    Spain
     
    • Canary Islands
      • Santa Cruz de Tenerife Province
    		Ferguson, A.K. (1978): The occurence of Ramseyite, Titan-Lavenite and a fluorine-rich Eucolite in a nepheline-syenite inclusion from Tenerife, Canary Islands, Contrib Mineral Petrol 66, 15-20
    USA
     
    • Arkansas
      • Hot Spring Co.
        • Magnet Cove
    		Rocks & Min.:63:109.
    • New Mexico
      • Colfax Co.
        • Springer
          • Point of Rocks Mesa (Pecks Mesa)
    		Rocks & Min.:60:229.
    Mineral and/or Locality
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