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Schorlomite

A valid IMA mineral species - grandfathered

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Photos of Schorlomite (47)

Schorlomite Gallery Search Photos of Schorlomite

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Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Schorlomite

Magnet Cove, Hot Spring County, Arkansas, USA

Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Schorlomite

Magnet Cove, Hot Spring County, Arkansas, USA

Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

Schorlomite

Graulay quarry, Hillesheim, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany

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About SchorlomiteHide

Formula:

Ca₃Ti₂(SiO₄)(Fe³⁺O₄)₂

Colour:

Grayish black, black, may be tarnished blue; deep reddish brown

Lustre:

Sub-Metallic

Hardness:

7 - 7½

Specific Gravity:

3.862

Crystal System:

Isometric

Member of:

Schorlomite Group > Garnet Supergroup

Name:

For its visual resemblance to schorl

Type Locality:

ⓘ Magnet Cove, Hot Spring County, Arkansas, USA

Garnet Group. Compare UM1982-16-SiO:AlCaFeTi and Morimotoite.

Much of the recent material labelled "schorlomite" is mislabeled and is, strictly speaking, Ti-bearing andradite/"melanite".

Visit gemdat.org for gemological information about Schorlomite.

Unique IdentifiersHide

Mindat ID:

3579

Long-form identifier:

mindat:1:1:3579:4

GUID
(UUID V4):

d195d7ae-96b9-4811-b86e-b3e08c25b817

IMA Classification of SchorlomiteHide

IMA status:

Approved, 'Grandfathered' (first described prior to 1959)

IMA Formula:

Ca₃Ti₂(SiFe³⁺₂)O₁₂

First published:

1846

Type description reference:

Shepard, C.U. (1846) On three new mineral species from Arkansas, and the discovery of the diamond in North Carolina. American Journal of Science and Arts: 52: 249-254.

Classification of SchorlomiteHide

Strunz-mindat (2024):

9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination

Dana 8th ed.:

51.4.3c.1

51 : NESOSILICATES Insular SiO₄ Groups Only
4 : Insular SiO₄ Groups Only with cations in [6] and >[6] coordination

Hey's CIM Ref.:

14.9.35

14 : Silicates not Containing Aluminum
9 : Silicates of Ti

Mineral SymbolsHide

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

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol	Source	Reference
Slo	IMA–CNMNC	Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Slm	The Canadian Mineralogist (2019)	The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Physical Properties of SchorlomiteHide

Lustre:

Sub-Metallic

Colour:

Grayish black, black, may be tarnished blue; deep reddish brown

Streak:

black to red-orange or orange-brown

Hardness:

7 - 7½ on Mohs scale

Tenacity:

Brittle

Cleavage:

Poor/Indistinct

Fracture:

Conchoidal

Density:

3.862 g/cm³ (Measured) 3.77 g/cm³ (Calculated)

Optical Data of SchorlomiteHide

Type:

Isotropic

RI values:

n = 1.94 - 1.98

Birefringence:

Isotropic minerals have no birefringence

Surface Relief:

Very High

Comments:

RI increases with titanium content

Chemistry of SchorlomiteHide

Mindat Formula:

Ca₃Ti₂(SiO₄)(Fe³⁺O₄)₂

Elements listed:

Ca, Fe, O, Si, Ti - search for minerals with similar chemistry

Common Impurities:

Na,Al,Mn,Mg,Na,K,H₂0,P,Zr,V

Crystallography of SchorlomiteHide

Crystal System:

Isometric

Class (H-M):

m3m (4/m 3 2/m) - Hexoctahedral

Space Group:

Ia3d

Setting:

Ia3d

Cell Parameters:

a = 12.15 Å

Unit Cell V:

1,793.61 Å³ (Calculated from Unit Cell)

Morphology:

trapezohedra and dodecahedra, up to 2 cm

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	Year	Temp (K)
0005430	Schorlomite	Peterson R C, Locock A J, Luth R W (1995) Positional disorder of oxygen in garnet: the crystal-structure refinement of schorlomite The Canadian Mineralogist 33 627-631	1995	293
0005431	Schorlomite	Peterson R C, Locock A J, Luth R W (1995) Positional disorder of oxygen in garnet: the crystal-structure refinement of schorlomite The Canadian Mineralogist 33 627-631	1995	293
0008963	Schorlomite	Chakhmouradian A R, McCammon C A (2005) Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries Garnet Physics and Chemistry of Minerals 32 277-289	2005	293
0008964	Schorlomite	Chakhmouradian A R, McCammon C A (2005) Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries Garnet Physics and Chemistry of Minerals 32 277-289	2005	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Schorlomite'
loop_
_publ_author_name
'Peterson R C'
'Locock A J'
'Luth R W'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 33 
_journal_year 1995
_journal_page_first 627
_journal_page_last 631
_publ_section_title
;
 Positional disorder of oxygen in garnet: the crystal-structure
 refinement of schorlomite
 Sample: model 1
;
_database_code_amcsd 0005430
_chemical_formula_sum 'Si2.34 Fe1.36 Ti1.06 Al.14 Zr.04 Mg.13 Mn.02 Ca2.88 Na.03 O12'
_cell_length_a 12.157
_cell_length_b 12.157
_cell_length_c 12.157
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1796.715
_exptl_crystal_density_diffrn      3.787
_symmetry_space_group_name_H-M 'I a -3 d'
loop_
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  '3/4+z,3/4+y,3/4+x'
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  '-x,1/2-y,+z'
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  '-z,+x,1/2+y'
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  '-x,+y,1/2+z'
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  '+z,-x,1/2-y'
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  '-y,+z,1/2+x'
  '1/2+x,1/2-y,-z'
  '+x,-y,1/2-z'
  '3/4-x,3/4+z,1/4-y'
  '1/4-x,1/4+z,3/4-y'
  '3/4+z,3/4-y,1/4+x'
  '1/4+z,1/4-y,3/4+x'
  '3/4-y,3/4+x,1/4-z'
  '1/4-y,1/4+x,3/4-z'
  '3/4+x,3/4-z,1/4+y'
  '1/4+x,1/4-z,3/4+y'
  '3/4-z,3/4+y,1/4-x'
  '1/4-z,1/4+y,3/4-x'
  '3/4+y,3/4-x,1/4+z'
  '1/4+y,1/4-x,3/4+z'
  '1/4-x,3/4-z,3/4+y'
  '3/4-x,1/4-z,1/4+y'
  '1/4+z,3/4+y,3/4-x'
  '3/4+z,1/4+y,1/4-x'
  '1/4-y,3/4-x,3/4+z'
  '3/4-y,1/4-x,1/4+z'
  '1/4+x,3/4+z,3/4-y'
  '3/4+x,1/4+z,1/4-y'
  '1/4-z,3/4-y,3/4+x'
  '3/4-z,1/4-y,1/4+x'
  '1/4+y,3/4+x,3/4-z'
  '3/4+y,1/4+x,1/4-z'
  '-z,-x,-y'
  '1/2-z,1/2-x,1/2-y'
  'y,z,x'
  '1/2+y,1/2+z,1/2+x'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
  'z,x,y'
  '1/2+z,1/2+x,1/2+y'
  '-y,-z,-x'
  '1/2-y,1/2-z,1/2-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
SiZ   0.37500   0.00000   0.25000   0.78000
FeZ   0.37500   0.00000   0.25000   0.22000
TiY   0.00000   0.00000   0.00000   0.53000
FeY   0.00000   0.00000   0.00000   0.35000
AlY   0.00000   0.00000   0.00000   0.07000
ZrY   0.00000   0.00000   0.00000   0.02000
MgY   0.00000   0.00000   0.00000   0.02000
MnY   0.00000   0.00000   0.00000   0.01000
CaX   0.12500   0.00000   0.25000   0.96000
MgX   0.12500   0.00000   0.25000   0.03000
NaX   0.12500   0.00000   0.25000   0.01000
O   0.03680   0.04880   0.65280   1.00000
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
SiZ 0.01400 0.01100 0.01100 0.00000 0.00000 0.00000
FeZ 0.01400 0.01100 0.01100 0.00000 0.00000 0.00000
TiY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
FeY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
AlY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
ZrY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
MgY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
MnY 0.00700 0.00700 0.00700 0.00100 0.00100 0.00100
CaX 0.00300 0.00800 0.00800 0.00000 0.00000 0.00600
MgX 0.00300 0.00800 0.00800 0.00000 0.00000 0.00600
NaX 0.00300 0.00800 0.00800 0.00000 0.00000 0.00600
O 0.01600 0.00600 0.01200 -0.00300 0.00900 -0.00200

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.

Powder Diffraction Data:

d-spacing	Intensity
3.038 Å	(74)
2.717 Å	(100)
2.480 Å	(38)
1.624 Å	(52)
1.358 Å	(33)

Comments:

Afrikanda, Kola Peninsula, Russia. Data are from Chakhmouradian and McCammon (2005).

Geological EnvironmentHide

Paragenetic Mode(s):

Paragenetic Mode	Earliest Age (Ga)
Near-surface Processes
26 : Hadean detrital minerals
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks	>3.0
35 : Ultra-alkali and agpaitic igneous rocks
36 : Carbonatites, kimberlites, and related igneous rocks
Stage 5: Initiation of plate tectonics	<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere	<0.6
51 : Pyrometamorphic minerals (see also #54 and #56)	<0.36

Geological Setting:

carbonatites, syenites, and phonolites; also in skarns

Type Occurrence of SchorlomiteHide

Type Locality:

ⓘ Magnet Cove, Hot Spring County, Arkansas, USA

Place of Conservation of Type Material:

National Museum of Natural History, Washington, D.C., USA, 128705.

Geological Setting of Type Material:

Magnet Cove. T 36. R 17 W. S 21. Hot Springs Co., Arkansas.

Associated Minerals at Type Locality:

Reference:

Shepard, C.U. (1846) On three new mineral species from Arkansas, and the discovery of the diamond in North Carolina. American Journal of Science and Arts: 52: 249-254.

Download:

https://rruff.info/rruff_1.0/uploads/The_American_journal_of_science_and_arts_52_1846_249.pdf

Synonyms of SchorlomiteHide

Other Language Names for SchorlomiteHide

German:Ferrotitanit
Iiwaarit
Ivaarit
Schorlomit

Russian:Шорломит

Simplified Chinese:钛榴石

Spanish:Chorlomita
Schorlomita

Traditional Chinese:鈦榴石

Relationship of Schorlomite to other SpeciesHide

Member of:

Schorlomite Group > Garnet Supergroup

Other Members of this group:

Hutcheonite	Ca₃Ti₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
Irinarassite	Ca₃Sn₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
Kerimasite	Ca₃Zr₂(SiO₄)(Fe³⁺O₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
Kimzeyite	Ca₃Zr₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
Toturite	Ca₃Sn₂(SiO₄)(Fe³⁺O₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d

Forms a series with:

Andradite

Andradite-Schorlomite Series

Common AssociatesHide

Associated Minerals Based on Photo Data:

41 photos of Schorlomite associated with Nepheline	Na₃K(Al₄Si₄O₁₆)
6 photos of Schorlomite associated with Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
4 photos of Schorlomite associated with Magnetite	Fe²⁺Fe³⁺₂O₄
3 photos of Schorlomite associated with Erdite	NaFeS₂ · 2H₂O
3 photos of Schorlomite associated with Aegirine	NaFe³⁺Si₂O₆
2 photos of Schorlomite associated with Calcite	CaCO₃
2 photos of Schorlomite associated with Melilite Group	Ca₂M(XSiO₇)
2 photos of Schorlomite associated with Pyroxene Group	ADSi₂O₆
1 photo of Schorlomite associated with Andradite	Ca₃Fe³⁺₂(SiO₄)₃
1 photo of Schorlomite associated with Orthoclase	K(AlSi₃O₈)

Related Minerals - Strunz-mindat Grouping Hide

9.AD.	Adrianite	Ca₁₂(Al₄Mg₃Si₇)O₃₂Cl₆	Iso. 4 3m : I4 3d
9.AD.05	Larnite	Ca₂SiO₄	Mon. 2/m
9.AD.10	Calcio-olivine	Ca₂SiO₄	Orth. mmm (2/m 2/m 2/m)
9.AD.15	Merwinite	Ca₃Mg(SiO₄)₂	Mon. 2/m : P2₁/b
9.AD.20	Bredigite	Ca₇Mg(SiO₄)₄	Orth. mm2 : Pnn2
9.AD.25	Andradite	Ca₃Fe³⁺₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Almandine	Fe²⁺₃Al₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Calderite	Mn²⁺₃Fe³⁺₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Goldmanite	Ca₃V³⁺₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Grossular	Ca₃Al₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Henritermierite	Ca₃Mn³⁺₂(SiO₄)₂[◻(OH)₄]	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
9.AD.25	Kimzeyite	Ca₃Zr₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Knorringite	Mg₃Cr₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Majorite	Mg₃(MgSi)(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Morimotoite	Ca₃(TiFe²⁺)(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Pyrope	Mg₃Al₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Spessartine	Mn²⁺₃Al₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Uvarovite	Ca₃Cr₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Wadalite	(Ca,Mg)₆(Al,Fe³⁺)₄((Si,Al)O₄)₃O₄Cl₃	Iso. 4 3m : I4 3d
9.AD.25 va	Hydrougrandite	(Ca,Mg,Fe²⁺)₃(Fe³⁺,Al)₂[(OH)₄(SiO₄)₂]	Iso.
9.AD.25 va	Yamatoite	(Mn²⁺,Ca)₃(V³⁺,Al)₂(SiO₄)₃	Iso.
9.AD.25	Holtstamite	Ca₃Al₂(SiO₄)₂[◻(OH)₄]	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/acd
9.AD.25	Khoharite	Mg₃Fe³⁺₂(SiO₄)₃
9.AD.25	Kerimasite	Ca₃Zr₂(SiO₄)(Fe³⁺O₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Toturite	Ca₃Sn₂(SiO₄)(Fe³⁺O₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Momoiite	Mn²⁺₃V³⁺₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Eringaite	Ca₃Sc₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Irinarassite	Ca₃Sn₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Menzerite-(Y)	(Y₂Ca)Mg₂(SiO₄)₃	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	Eltyubyuite	Ca₁₂Fe³⁺₁₀Si₄O₃₂Cl₆	Iso. 4 3m : I4 3d
9.AD.25	Blythite	Mn²⁺₃Mn³⁺₂[SiO₄]₃
9.AD.25	Skiagite	Fe²⁺₃Fe³⁺₂[SiO₄]₃
9.AD.25	Hutcheonite	Ca₃Ti₂(SiO₄)(AlO₄)₂	Iso. m3m (4/m 3 2/m) : Ia3d
9.AD.25	UM1984-37-SiO:CrMn	Mn²⁺₃Cr³⁺₂(SiO₄)₃
9.AD.25	Rubinite	Ca₃Ti³⁺₂Si₃O₁₂	Iso.
9.AD.25	Nikmelnikovite	Ca₁₂(Fe²⁺Fe³⁺₃Al₃◻)[SiO₄]₆[◻(OH)₄]₅◻₄	Trig. 3 : R3
9.AD.30 va	Auerlite	near Th(Si,P)O₄
9.AD.30	Coffinite	U(SiO₄) · nH₂O	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
9.AD.30	Hafnon	HfSiO₄	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
9.AD.30	Thorite	Th(SiO₄)	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
9.AD.30	Zircon	Zr(SiO₄)	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
9.AD.30	Stetindite-(Ce)	Ce(SiO₄)	Tet. 4/mmm (4/m 2/m 2/m) : I4₁/amd
9.AD.35	Huttonite	ThSiO₄	Mon. 2/m
9.AD.35	Tombarthite-(Y)	Y₄(Si,H₄)₄O_12-x(OH)_4+2x	Mon.
9.AD.40	Eulytine	Bi₄(SiO₄)₃	Iso. 4 3m : I4 3d
9.AD.45	Reidite	ZrSiO₄	Tet. 4/m : I4₁/a
9.AD.55	Jeffbenite	Mg₃Al₂Si₃O₁₂	Tet. 4 2m : I4 2d

Other InformationHide

Notes:

easily decomposed by the acid

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 SchorlomiteHide

mindat.org URL:

https://www.mindat.org/min-3579.html
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References for SchorlomiteHide

Reference List:

Shepard, C.U. (1846) On three new mineral species from Arkansas, and the discovery of the diamond in North Carolina. American Journal of Science and Arts: 52: 249-254.

Koenig, Geo.A. (1886) On Schorlomite as a Variety of Melanite. Proceedings of the Academy of Natural Sciences of Philadelphia: 38: 355-357.

Howie, R.A., Wooley, A.R., Scoon, J.H., Tyler, R.C., Walsh, J.N. (1968) The role of titanium and the effect of TiO2 on the cell size, refractive index, and specific gravity in the andradite-melanite-schorlomite series. Mineralogical Magazine: 36: 775-790.

Manning, P.G., Harris, D.C. (1970) Optical absorption and electron-microprobe studies of some high-Ti andradites. The Canadian Mineralogist: 10: 260-271.

Kusachi, I., Henmi, C., Henmi, K. (1975) Schorlomite from Fuka, the town of Bitchu, Okayama Prefecture. Journal of the Mineralogical Society of Japan: 12: 184-191. (= titanium-rich andradite)

Virgo, D., Rosenhauer, M., Huggins, F.E. (1976) Intrinsic oxygen fugacities of natural melanites and schorlomites and crystal-chemical implications. Carnegie Inst. Wash. Year Book: 720-729.

Huggins, F.E., Virgo, D., Huckenbolz, H.G. (1977) Titanium-containing silicate garnets: II. The crystal chemistry of melanites and schorlomites. American Mineralogist: 62: 646-665.

Schwartz, K.B., Nolet, D.A., Burns, R.G. (1980) Mössbauer spectroscopy and crystal chemistry of natural Fe-Ti garnets. American Mineralogist: 65: 142-153.

Waychunas, G.A., Apted, M.J., Brown, G.E. (1981) Coordination and Valence of Ti in Kaersutite, Schorlomite, Titanite and Titanite Glass from X‐ray Absorption Spectroscopy. In Geol. Soc. Amer. Abstracts with Programs: 13: 577.

Baolei, B.Y.M., Meicheng, Z.Z.S. (1983) The crystal structure of schorlomite and the structural distribution of titanium atoms. Acta Mineralogica Sinica: 04.

Ying, Y., Cai, R. (1985) An anomalous Mossbauer spectrum of schorlomite. Science in China Series B-Chemistry, Biological, Agricultural, Medical & Earth Sciences: 28(2): 202-209.

Gongbao, W., Baolei, M. (1986) The crystal chemistry and Mössbauer study of schorlomite. Physics and Chemistry of Minerals: 13: 198–205.

Foit, Franklin F., Jr., (1989) Crystal chemistry of alkali-deficient schorl and tourmaline structural relationships. American Mineralogist, 74 (3-4) 422-431

Kühberger, A., Fehr, T., Huckenholz, H.G., Amthauer, G. (1989) Crystal chemistry of a natural schorlomite and Ti-andradites synthesized at different oxygen fugacities. Physics and Chemistry of Minerals: 16(8): 734-740.

Peterson, R.C., Locock, A.J., Luth, R.W. (1995) Positional disorder of oxygen in garnet; the crystal-structure refinement of schorlomite. The Canadian Mineralogist: 33(3): 627-631.

Locock, A., Luth, R.W., Cavel, R.G., Smith, D.G., Duke, M.J.M. (1995) Spectroscopy of the cation distribution in the schorlomite species of garnet. American Mineralogist: 80(1-2): 27-38.

Rass, I.T., Dubrovinskii, L.S. (1997) The schorlomite thermodynamic parameters and stability field. Doklady RAS: 354(6): 191-198.

Armbruster, Thomas, Birrer, Julia, Libowitzky, Eugen, Beran, Anton (1998) Crystal chemistry of Ti-bearing andradites. European Journal of Mineralogy, 10 (5) 907-921 doi:10.1127/ejm/10/5/0907

Chakhmouradian, A.R., McCammon, C.A. (2005) Schorlomite: a discussion of the crystal chemistry, formula, and inter-species boundaries. Physics and Chemistry of Minerals: 32: 277-289.

Grew, E. S., Locock, A. J., Mills, S. J., Galuskina, I. O., Galuskin, E. V., Hålenius, U. (2013) Nomenclature of the garnet supergroup. American Mineralogist, 98 (4) 785-811 doi:10.2138/am.2013.4201

Antao, S.M. (2014) Schorlomite and morimotoite: what's in a name?. Powder Diffraction: 29(4): 346-351.

Schingaro, Emanuela, Lacalamita, Maria, Mesto, Ernesto, Ventruti, Gennaro, Pedrazzi, Giuseppe, Ottolini, Luisa, Scordari, Fernando (2016) Crystal chemistry and light elements analysis of Ti-rich garnets. American Mineralogist, 101 (2) 371-384 doi:10.2138/am-2016-5439

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

Localities for SchorlomiteHide

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.


Angola
Huambo Province Londuimbali ⓘ Monte Verde	Gonçalves +1 other reference
Huíla Province Quilengues ⓘ Mount Bonga	Amores-Casals et al. (2019)
ⓘ Mount Tchivira	Alves +6 other references

Brazil
São Paulo Cajati ⓘ Jacupiranga alkaline complex	Oliveira et al. (2020)
ⓘ Jacupiranga mine	Menezes et al. (1984)

Cameroon
Southwest Region Fako Buea ⓘ Mount Etinde	February 2001 +13 other references

Canada
British Columbia Golden Mining Division ⓘ Ice River Alkaline Complex	Cavell et al. (1995)
ⓘ Garnet Mountain	Jones (1955)
Newfoundland and Labrador Labrador ⓘ Aillik Bay	Tappe et al. (2005)
Northwest Territories Lac de Gras Ekati Mine ⓘ Roger Pipe	Abersteiner et al. (2018)
Nunavut Qikiqtaaluk Region Ungava bay Abloviak fjord ⓘ Torngat dikes	Tappe et al. (2004)
Ontario Algoma District McMurray Township ⓘ Firesand Creek Carbonatite Complex	Sage (1988)
Thunder Bay District Killala Lake Area ⓘ Prairie Lake carbonatite	The Canadian Mineralogist Vol. 44 (2006)
Québec Saguenay-Lac-Saint-Jean Le Fjord-du-Saguenay RCM Saint-Honoré ⓘ Saint-Honoré carbonatite complex	Currie (1976)
ⓘ Niobec mine	FOURNIER (1993)

Cape Verde


China
Hebei Baoding Laiyuan County ⓘ Zhijiazhuang Mine	Chang Zhaoshan and Feng Zhongyan (1996)
Zhangjiakou Zhuolu County ⓘ Fanshan Mine	Baolei Mu et al. (1998)
Shanxi Lüliang Xing County Zijinshan Complex ⓘ Zijinshan REE deposit (Zijingshan REE deposit)	Daogan Tai and Peiying Lin (1987)

Czech Republic
Ústí nad Labem Region Chomutov District ⓘ Loučná pod Klínovcem	Pivec et al. (1982) +3 other references

Finland
North Ostrobothnia Kuusamo ⓘ Iivaara Intrusion (Ijola)	Kramm et al. (1993) +2 other references

Germany
Baden-Württemberg ⓘ Kaiserstuhl	Armbruster et al. (1998)
Lower Saxony Goslar District Bad Harzburg Radau valley ⓘ Gabbro Quarry
Rhineland-Palatinate Ahrweiler Brohltal Wehr ⓘ Kappiger Ley (Kappiger Lay)	Viereck
Mayen-Koblenz Mendig Mendig ⓘ Rodder Höfe	Viereck
Vordereifel Ettringen ⓘ Caspar quarry	Blass et al. (2002)
Vulkaneifel Gerolstein Hillesheim ⓘ Graulay quarry	Hentschel (1993)
Rockeskyll Rockeskyll volcanic complex ⓘ Auf Dickel (incl. Nonnental)	Riley

Greenland
Sermersooq Kangerlussuaq Fjord ⓘ Gardiner Complex	Petersen et al. (1985)
Paamiut (Frederikshåb) ⓘ Frederikshåbs Isblink	www.koeln.netsurf.de (1999)

India
Andhra Pradesh Anantapur District Wajrakarur kimberlite field Wajrakarur–Lattavaram cluster ⓘ Pipe-8	Dongre et al. (2020)
Gujarat Chhota Udaipur District ⓘ Ambadungar	Samal et al. (2021)

Iraq
Sulaymaniyah Governorate Pshdar District Qaladiza Hero ⓘ Dupezeh Mountain	Al-Hermezi et al. (1986)

Israel
Southern District (HaDarom District) Tamar Regional Council ⓘ Aradite type locality	Galuskin et al. (2015)
Hatrurim Basin ⓘ Gurim anticline	Galuskina et al. (2017)
ⓘ Har Parsa (Mt. Parsa)	Krzątała et al. (2018)
ⓘ Mazorite type locality	Krzątała et al. (2023)

Italy
Basilicata Potenza Province Rionero in Vulture ⓘ Monte Vulture	Stoppa +13 other references
Lazio Rieti Province Rieti Santa Rufina ⓘ Cupaello Quarry	Sabatini (1903) +6 other references
Tuscany ⓘ Livorno Province	Bonifazi (2020)
Umbria Perugia Province Spoleto ⓘ Colle Fabbri	Stoppa.F. (2004)
Terni Province ⓘ Polino	F. Stoppa and Y. Liu +8 other references

Japan
Okayama Prefecture Takahashi City Bitchū Fuka ⓘ ~~Fuka mine~~	- (= titanium-rich andradite)

Kenya
Kajiado County ⓘ Shompole Volcano	Peterson +2 other references

Middle East
ⓘ Hatrurim Formation	Vapnik et al. (2006)

Mongolia
Ömnögovi Province Shara Hulasa Hiid ⓘ Mushgai Khudag carbonatite complex	Pavel.M. Kartashov (n.d.)

Morocco
Drâa-Tafilalet Region Midelt Province Midelt Cercle Agoudim Anemzi ⓘ ~~Tirrhist (Tighiste)~~	C Bracke collection
Aït Oufella Caïdat Amersid ⓘ Jebel Bou-Agrao

Norway
Telemark Skien ⓘ Brennseter Mica Prospect	Larsen (1993)
ⓘ Flekkeren	Jamtveit et al. (1997)

Pacific Ocean
East Pacific Rise ⓘ Hole 1256D	Christine Laverne et al. (2006)

Russia
Irkutsk Oblast Narin-Kunta ⓘ Birkhin gabbro massif (Ozernovskii)	Lazic et al. (2011)
ⓘ Nizhnesayanskii carbonatite	L. Kogarko (1995)
ⓘ Zhidoiskii massif (Zhidoi)	Pavel.M. Kartashov (n.d.)
Krasnoyarsk Krai Maimecha and Kotui Rivers Basin ⓘ Odikhincha massif	Pavel.M. Kartashov (n.d.) +1 other reference
Murmansk Oblast ⓘ Afrikanda complex	Chakhmouradian +1 other reference
ⓘ Khibiny Massif	...
Kukisvumchorr Mt ⓘ Svintsovyi Ruchei (Lead Creek)	Shlyukova Z.V. (1986)
Kolsky District ⓘ Seblyavr Massif	Kogarko (1995)
Kovdorsky District ⓘ Kovdor Massif	Verhulst et al. (2000)
Northern Karelia ⓘ Vuoriyarvi alkaline-ultrabasic massif	...
Turii Cape ⓘ Turii alkaline massif (Turiy massif)	... +3 other references
ⓘ Sakha	[World of Stones 12:49]
Mirninsky District ⓘ Vilyui River Basin	Galuskina et al. (2010)
Polar Yakutia ⓘ Tomtor Massif	Okrugin et al. (2023)
Tuva ⓘ Belaya Zima REE-Nb deposit	Doroshkevich et al. (2016)
Sangilen Upland ⓘ Dahunur (Dahu-Nur) massif	webmineral.ru (2020)

Slovakia
Žilina Region ⓘ Malá Fatra	S.W. Faryadl & I. Dianiška (2001)

South Africa
North West Ngaka Modiri Molema District Municipality Ramotshere Moiloa Local Municipality ⓘ Goudini carbonatite complex	VERWOERD (1993)

Spain
Canary Islands Las Palmas Province Fuerteventura Fuerteventura Basal Complex ⓘ Esquinzo ultra-alkaline complex	Casillas et al. (2024)

Sudan
Blue Nile ⓘ Babaras	Ahmed Khidir Yagoub ()

Sweden
Västernorrland County Sundsvall ⓘ Alnö Complex	Kresten (1990)
ⓘ Hörningsholm	Phillip Betancourt

UK
Scotland Highland Fort William and Ardnamurchan Ardnamurchan ⓘ Camphouse	Embrey (1978)

USA (TL)
Arkansas Hot Spring County ⓘ Magnet Cove (TL)	Chakhmouradian +3 other references
ⓘ Cove Creek Bridge and The Branch area	Rocks and Minerals (1988)
ⓘ Diamond Jo Quarry	Flohr et al. (1989)
ⓘ Kimzey Calcite Quarry (Calcite Hill)	Rocks and Minerals (1976)
ⓘ Magnet Cove Baptist Church area	Rocks and Minerals (1988)
California Humboldt County Coastal Range ⓘ Coyote Peak	Van Nostrand Reinholt Press: 495 +3 other references
Colorado Gunnison County White Earth Mining District (Powderhorn Mining District) ⓘ Iron Hill deposit	Eckel et al. (1997)

Schorlomite

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