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Laachite

A valid IMA mineral species

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Photos of Laachite (6)

Laachite Gallery Search Photos of Laachite

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Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Laachite

In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

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About LaachiteHide

Laach lake

Laacher See Volcanic Complex, Germany

Formula:

(Ca,Mn)₂Zr₂Nb₂TiFeO₁₄

Colour:

brownish-red

Lustre:

Adamantine

Specific Gravity:

5.417 (Calculated)

Crystal System:

Monoclinic

Name:

For the type locality

Type Locality:

ⓘ In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

Related to zirconolite-2M with Nb dominant over Ti.
Closely related to nöggerathite-(Ce), Stefanweissite.

Unique IdentifiersHide

Mindat ID:

43866

Long-form identifier:

mindat:1:1:43866:1

GUID
(UUID V4):

166e8a12-2665-4308-ae94-0e238468d28c

IMA Classification of LaachiteHide

IMA status:

Approved

Approval year:

2013

First published:

2014

Type description reference:

Chukanov, Nikita V., Krivovichev, Sergey V., Pakhomova, Anna S., Pekov, Igor V., Schäfer, Christof, Vigasina, Marina F., Van, Konstantin V. (2014) Laachite, (Ca,Mn)2Zr2Nb2TiFeO14, a new zirconolite-related mineral from the Eifel volcanic region, Germany. European Journal of Mineralogy, 26 (1) 103-111 doi:10.1127/0935-1221/2013/0025-2343

Classification of LaachiteHide

Strunz-mindat (2024):

4.DH.30

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra

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
Laa	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 LaachiteHide

Lustre:

Adamantine

Transparency:

Translucent

Colour:

brownish-red

Streak:

brownish-red

Tenacity:

Brittle

Fracture:

Irregular/Uneven

Density:

5.417 g/cm³ (Calculated)

Chemistry of LaachiteHide

Mindat Formula:

(Ca,Mn)₂Zr₂Nb₂TiFeO₁₄

Elements listed:

Ca, Fe, Mn, Nb, O, Ti, Zr - search for minerals with similar chemistry

Crystallography of LaachiteHide

Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Space Group:

B2/b

Setting:

C2/c

Cell Parameters:

a = 7.3119(5) Å, b = 14.179(1) Å, c = 10.1700(7) Å
β = 90.072(2)°

Ratio:

a:b:c = 0.516 : 1 : 0.717

Unit Cell V:

1054.38 Å³

Twinning:

twinned

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0020511	Laachite	Chukanov N V, Krivovichev S V, Pakhomova A S,Pekov I V,Schafer C, Vigasina M F, Van K V (2011) Laachite, (Ca,Mn)2Zr2Nb2TiFeO14, a new zirconolite-related mineral from the Eifel volcanic region, Germany European Journal of Mineralogy 26 103-111		2011	Laach Lake volcano, Eifel region, Germany	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Laachite'
loop_
_publ_author_name
'Chukanov N V'
'Krivovichev S V'
'Pakhomova A S'
'Pekov I V'
'Schafer C'
'Vigasina M F'
'Van K V'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 26 
_journal_year 2011
_journal_page_first 103
_journal_page_last 111
_publ_section_title
;
 Laachite, (Ca,Mn)2Zr2Nb2TiFeO14, a new zirconolite-related mineral from the Eifel
 volcanic region, Germany
;
_database_code_amcsd 0020511
_chemical_compound_source 'Laach Lake volcano, Eifel region, Germany'
_chemical_formula_sum 'Nb1.54 Ti1.3 Al.16 Ca.6 Mn1.18 Ce.3 La.1 Nd.1 Th.28 Y.2 Zr1.56 Fe.68 O14'
_cell_length_a 7.3119
_cell_length_b 14.1790
_cell_length_c 10.1700
_cell_angle_alpha 90
_cell_angle_beta 90.072
_cell_angle_gamma 90
_cell_volume 1054.378
_exptl_crystal_density_diffrn      5.392
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Nb1   0.00000   0.38313   0.25000   0.44000   0.00738
Ti1   0.00000   0.38313   0.25000   0.40000   0.00738
Al1   0.00000   0.38313   0.25000   0.16000   0.00738
Nb2  -0.25000   0.75000   0.00000   0.82000   0.01035
Ti2  -0.25000   0.75000   0.00000   0.18000   0.01035
Ti3   0.00000   0.88224   0.25000   0.72000   0.01061
Nb3   0.00000   0.88224   0.25000   0.28000   0.01061
Ca1  -0.50000   0.63156   0.25000   0.28000   0.00655
Mn1  -0.50000   0.63156   0.25000   0.26000   0.00655
Ce1  -0.50000   0.63156   0.25000   0.16000   0.00655
La1  -0.50000   0.63156   0.25000   0.05000   0.00655
Nd1  -0.50000   0.63156   0.25000   0.05000   0.00655
Th1  -0.50000   0.63156   0.25000   0.14000   0.00655
Y1  -0.50000   0.63156   0.25000   0.06000   0.00655
Ca2   0.00000   0.63249   0.25000   0.32000   0.00837
Mn2   0.00000   0.63249   0.25000   0.28000   0.00837
Ce2   0.00000   0.63249   0.25000   0.14000   0.00837
La2   0.00000   0.63249   0.25000   0.05000   0.00837
Nd2   0.00000   0.63249   0.25000   0.05000   0.00837
Th2   0.00000   0.63249   0.25000   0.14000   0.00837
Y2   0.00000   0.63249   0.25000   0.02000   0.00837
Zr1  -0.24980   0.48304   0.01391   0.78000   0.00988
Mn3  -0.24980   0.48304   0.01391   0.22000   0.00988
Fe1  -0.29920   0.24390  -0.00901   0.34000   0.05016
Mn4  -0.29920   0.24390  -0.00901   0.10000   0.05016
Y3  -0.29920   0.24390  -0.00901   0.06000   0.05016
O1  -0.25248   0.62075   0.08905   1.00000   0.00894
O2  -0.03977   0.98257   0.12119   1.00000   0.01297
O3   0.03600   0.48118   0.11947   1.00000   0.01699
O4  -0.25210   0.13947   0.10165   1.00000   0.01282
O5  -0.05679   0.78155   0.12714   1.00000   0.01263
O6   0.05878   0.28280   0.12530   1.00000   0.01353
O7  -0.24932   0.38714   0.17805   1.00000   0.01417
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Nb1 0.00932 0.00521 0.00759 0.00000 -0.00081 0.00000
Ti1 0.00932 0.00521 0.00759 0.00000 -0.00081 0.00000
Al1 0.00932 0.00521 0.00759 0.00000 -0.00081 0.00000
Nb2 0.01232 0.00973 0.00900 0.00234 -0.00182 0.00080
Ti2 0.01232 0.00973 0.00900 0.00234 -0.00182 0.00080
Ti3 0.01009 0.01288 0.00887 0.00000 0.00096 0.00000
Nb3 0.01009 0.01288 0.00887 0.00000 0.00096 0.00000
Ca1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Mn1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Ce1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
La1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Nd1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Th1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Y1 0.00549 0.00928 0.00488 0.00000 0.00079 0.00000
Ca2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Mn2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Ce2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
La2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Nd2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Th2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Y2 0.00822 0.00897 0.00793 0.00000 -0.00015 0.00000
Zr1 0.01276 0.00724 0.00963 0.00042 -0.00252 -0.00205
Mn3 0.01276 0.00724 0.00963 0.00042 -0.00252 -0.00205
Fe1 0.07151 0.03084 0.04804 -0.02850 -0.02959 0.02942
Mn4 0.07151 0.03084 0.04804 -0.02850 -0.02959 0.02942
Y3 0.07151 0.03084 0.04804 -0.02850 -0.02959 0.02942
O1 0.00992 0.00591 0.01099 -0.00290 0.00260 -0.00178
O2 0.01948 0.00731 0.01210 0.00180 -0.01300 0.00010
O3 0.00330 0.01059 0.00741 0.00126 -0.00825 0.00333
O4 0.01320 0.01238 0.01289 -0.00060 -0.00010 -0.00182
O5 0.02337 0.00358 0.01089 -0.00462 -0.00944 0.00101
O6 0.01441 0.01710 0.00911 0.00008 0.00200 -0.00385
O7 0.00880 0.01885 0.01486 0.00030 -0.00440 0.00629

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
4.298 Å	(22)
2.967 Å	(100)
2.901 Å	(59)
2.551 Å	(32)
1.800 Å	(34)
1.541 Å	(24)
1.535 Å	(23)
1.529 Å	(23)

Comments:

From Type Description.

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Stage 4b: Highly evolved igneous rocks	>3.0
36 : Carbonatites, kimberlites, and related igneous rocks

Type Occurrence of LaachiteHide

Type Locality:

ⓘ In den Dellen quarries, Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany

General Appearance of Type Material:

long-prismatic crystals up to 0.02 × 0.04 × 0.5 mm, which are present as random intergrowths and twins in cavities within sanidinite.

Place of Conservation of Type Material:

Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4361/1

Geological Setting of Type Material:

Ejectum, Nosean-bearing syenite

Associated Minerals at Type Locality:

Zircon	Thorite	Tephroite	Spessartine	Sanidine
Rhodonite	Phlogopite	Jacobsite-Magnetite Series	Hydroxycalciopyrochlore	Hedenbergite
Haüyne	Baddeleyite	Allanite-(Ce)

Reference:

Chukanov, N. V., Krivovichev, S. V., Pakhomova, A. S., Pekov, I. V., Schäfer, C., Vigasina, M. F., & Van, K. V. (2014). Laachite,(Ca, Mn) 2Zr2Nb2TiFeO14, a new zirconolite-related mineral from the Eifel volcanic region, Germany. European Journal of Mineralogy, 26(1), 103-111.

Download:

https://rruff.info/rruff_1.0/uploads/EJM26_103.pdf

Synonyms of LaachiteHide

IMA2012-100

Related Minerals - Strunz-mindat Grouping Hide

4.DH.	Fluornatropyrochlore	(Na,Pb,Ca,REE,U)₂Nb₂O₆F	Iso. m3m (4/m 3 2/m)
4.DH.	Roméite Group	A₂(Sb⁵⁺)₂O₆Z
4.DH.	Hydroxykenomicrolite	(◻,Na,Sb³⁺)₂Ta₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.	Fluornatroroméite	(Na,Ca)₂Sb₂(O,OH)₆F
4.DH.	Oxyplumboroméite	Pb₂Sb₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.	Cesiokenopyrochlore	◻Nb₂(O,OH)₆(Cs,◻)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.	Oxyyttrobetafite-(Y)	Y₂Ti₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.05	Brannerite	UTi₂O₆	Mon. 2/m : B2/m
4.DH.05	Orthobrannerite	U⁴⁺U⁶⁺Ti₄O₁₂(OH)₂	Orth.
4.DH.05	Thorutite	(Th,U,Ca)Ti₂(O,OH)₆	Mon.
4.DH.10	Kassite	CaTi₂O₄(OH)₂	Mon. 2/m : P2₁/b
4.DH.10	Lucasite-(Ce)	CeTi₂(O,OH)₆	Mon.
4.DH.15 va	Alumotungstite	◻₂W₂O₆(H₂O)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Bismutomicrolite (of Hogarth 1977)		Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydroplumboelsmoreite	(Pb,◻)(W,Fe³⁺)₂O₆ · H₂O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydropyrochlore	(H₂O,◻)₂Nb₂(O,OH)₆(H₂O)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Plumbomicrolite (of Hogarth 1977)
4.DH.15	Stibiomicrolite (of Groat et al.)
4.DH.15	Strontiopyrochlore (of Hogarth 1977)	A₂Nb₂(O,OH)₆Z
4.DH.15	Fluornatromicrolite	(Na_1.5Bi_0.5)Ta₂O₆F	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Bismutopyrochlore (of Chukanov et al.)	(Bi,Ca,U,Pb)_2-xNb₂(O,OH)₆(OH)	Amor.
4.DH.15	Hydrokenoelsmoreite	◻₂W₂O₆(H₂O)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Fluorcalciomicrolite	(Ca,Na)₂(Ta,Nb)₂O₆F	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Oxycalciobetafite	Ca₂(Ti,Nb)₂O₆O
4.DH.15 va	Yttromicrolite (of Hogarth)	(Ca,Y³⁺,U,Na)_2-x(Ta,Nb,Ti,Fe³⁺)₂O₇	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Oxynatropyrochlore	(Na,Ca,U)₂Nb₂O₆(O,OH)
4.DH.15	Hydroxycalciopyrochlore	(Ca,Na,U,◻)₂(Nb,Ti)₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Fluorcalciopyrochlore	(Ca,Na)₂(Nb, Ti)₂O₆F	Iso.
4.DH.15	Oxycalciopyrochlore	Ca₂Nb₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Fluorstrontiopyrochlore	(Sr,◻)₂Nb₂(O,OH)₆F
4.DH.15	Oxyplumbopyrochlore	Pb₂Nb₂O₆O
4.DH.15	Kenoplumbopyrochlore	(Pb,◻)Nb₂O₆(◻,O)
4.DH.15	Oxyyttropyrochlore-(Y)	(Y,◻)₂Nb₂O₆O
4.DH.15	Fluorkenopyrochlore	(◻,Sr,Ce,Ca,Na)₂(Nb,Ti)₂O₆F
4.DH.15	Oxyuranobetafite	(U,Ca,◻)₂(Ti,Nb)₂O₆O
4.DH.15	Oxycalciomicrolite	Ca₂Ta₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Oxystannomicrolite	Sn₂Ta₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Kenoplumbomicrolite	(Pb,◻)₂Ta₂O₆(◻,OH,O)	Iso.
4.DH.15	Oxystibiomicrolite	(Sb³⁺,Ca)₂Ta₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydromicrolite	(H₂O,◻)₂Ta₂(O,OH)₆(H₂O)
4.DH.15	Hydrokenomicrolite	(◻,H₂O)₂Ta₂(O,OH)₆(H₂O)	Iso. m3m (4/m 3 2/m)
4.DH.15	Hydroxymanganopyrochlore	(Mn²⁺,Th,Na,Ca,REE)₂(Nb,Ti)₂O₆(OH)	Iso. m3 (2/m 3)
4.DH.15	Hydroxycalciomicrolite	Ca_1.5Ta₂O₆(OH)	Iso. 4 3 2 : P4₂ 3 2
4.DH.15	Fluorplumbopyrochlore	(Pb,Y,Th,U,Na,Ca)_2-x(Nb,Ti)₂O₆F	Iso.
4.DH.15	Hydroxyplumbopyrochlore	(Pb_1.5◻_0.5)Nb₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Oxynatromicrolite	(Na,Ca,U)₂(Ta,Nb)₂O₆(O,F)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Fluorhydropyrochlore
4.DH.15	Hydroxykenoelsmoreite	(◻,Pb)₂(W,Fe³⁺,Al)₂(O,OH)₆(OH)	Trig. 3 : R3
4.DH.15	Hydrokenopyrochlore	(◻,x)₂Nb₂O₆(H₂O,Cs)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydroxykenopyrochlore	(◻,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydroxynatropyrochlore	(Na,Ca,Ce)₂Nb₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Hydroxynatromicrolite	(Na,Bi³⁺,◻)₂Ta₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.15	Unnamed (Sb-analogue of Hydroxymanganopyrochlor)	(Mn,Ca,Y)₂(Sb,Ti)₂O₆(OH)
4.DH.15	Oxybismutomicrolite	(Bi_1.33◻_0.67)_Σ2Ta₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20	Bindheimite	Pb₂Sb₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20	Hydroxycalcioroméite	(Ca,Sb³⁺)₂(Sb⁵⁺,Ti)₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20	Monimolite	Pb₂Sb⁵⁺₂O₇	Iso. m3m (4/m 3 2/m)
4.DH.20	Cuproroméite	Cu₂Sb₂(O,OH)₇	Iso.
4.DH.20	Stetefeldtite	Ag₂Sb₂(O,OH)₇	Iso.
4.DH.20	Stibiconite	Sb³⁺Sb⁵⁺₂O₆(OH)	Iso. m3m (4/m 3 2/m)
4.DH.20	Fluorcalcioroméite	(Ca,Na,◻)₂Sb⁵⁺₂(O,OH)₆F	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20	Oxycalcioroméite	Ca₂Sb₂O₆O	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.20	Hydroxyferroroméite	(Fe²⁺_1.5◻_0.5)Sb⁵⁺₂O₆(OH)	Iso. m3m (4/m 3 2/m) : Fd3m
4.DH.25	Rosiaite	PbSb⁵⁺₂O₆	Trig. 3m (3 2/m) : P3 1m
4.DH.30	Zirconolite	CaZrTi₂O₇	Orth.
4.DH.30	Nöggerathite-(Ce)	(Ce,Ca)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄	Orth. mmm (2/m 2/m 2/m) : Cmca
4.DH.30	Stefanweissite	(Ca,REE)₂Zr₂(Nb,Ti)(Ti,Nb)₂Fe²⁺O₁₄	Orth. mmm (2/m 2/m 2/m) : Cmca
4.DH.35	Liandratite	U(Nb,Ta)₂O₈	Trig. 3m (3 2/m) : P3 1m
4.DH.35	Petscheckite	UFe(Nb,Ta)₂O₈	Hex.
4.DH.40	Ingersonite	Ca₃Mn²⁺Sb⁵⁺₄O₁₄	Trig. 3 2 : P3₁ 2 1
4.DH.45	Pittongite	Na_0.22(W,Fe³⁺)(O,OH)₃ · 0.44H₂O	Hex. 6 m2 : P6m2
4.DH.50	Tazzoliite	Ba_4-xNa_xTi₂Nb₃SiO₁₇[PO₂(OH)₂]_x(OH)_(1-2x)	Orth. mmm (2/m 2/m 2/m) : Fmmm

Other InformationHide

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 LaachiteHide

mindat.org URL:

https://www.mindat.org/min-43866.html
Please feel free to link to this page.

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Raman and XRD data at RRUFF project

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References for LaachiteHide

Reference List:

Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2013) New minerals and nomenclature modifications approved in 2013. CNMNC Newsletter No 16. Mineralogical Magazine, 77 (6) 2695-2709 doi:10.1180/minmag.2013.077.6.01

Schäfer, Ch., Chukanov, N. (2014): Über den Laachit, ein neues, mit Zirkonolith verwandtes Mineral vom Laacher Vulkan. Der Aufschluss, 65(4), 228-239.

(2023) Laachite. Handbook of Mineralogy. Mineralogical Society of America

Localities for LaachiteHide

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.


Germany (TL)
Rhineland-Palatinate Mayen-Koblenz Mendig Mendig ⓘ In den Dellen quarries (TL)	+ +3 other references

Russia
Krasnoyarsk Krai Boguchansky District Chadobets alkaline complex ⓘ Chuktukon carbonatite massif	Sharygin +9 other references
Murmansk Oblast Khibiny Massif Kukisvumchorr Mt ⓘ Marchenko Peak	Menshikov et al. (2015)
Kovdorsky District ⓘ Kovdor Massif	Ivanyuk et al. (2018)
ⓘ Kovdor Zheleznyi Mine	Gregory Ivanyuk et al. (2018)

Laachite

About LaachiteHide

Unique IdentifiersHide

IMA Classification of LaachiteHide

Classification of LaachiteHide

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Physical Properties of LaachiteHide

Chemistry of LaachiteHide

Crystallography of LaachiteHide

Crystal StructureHide

X-Ray Powder DiffractionHide

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Type Occurrence of LaachiteHide

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Related Minerals - Strunz-mindat GroupingHide

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References for LaachiteHide

Localities for LaachiteHide

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Related Minerals - Strunz-mindat Grouping Hide