Clinohumite
A valid IMA mineral species - grandfathered
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About Clinohumite
Formula:
Mg9(SiO4)4F2
a n=4 member of the humite polysomatic series
Colour:
White; yellow to brown with increasing Ti; orange; pinkish
Hardness:
6
Specific Gravity:
3.17 - 3.35
Crystal System:
Monoclinic
Member of:
Name:
Named in 1876 Alfred Lewis Oliver Legrand Des Cloizeaux in allusion to its monoclinic crystal structure and relationship to humite, which was named after Sir Abraham Hume [February 20, 1749 London, England, UK – March 24, 1838 Wormley Bury. England. UK], English connoisseur and collector of gems, minerals, and artwork.
Dimorph of:
Clinohumite is a monoclinic member of the humite group. It forms a continuous series towards hydroxylclinohumite. The name "clinohumite" has commonly been used as a default when the F/OH ratio has not been determined. Since hydroxylclinohumite was approved as a separate mineral (1998) it has become apparent that hydroxylclinohumite is much more common than indicated in the literature and locality entries in Mindat. It should also be noted that some of the published analyses (Luc Yen, Vietnam and Kukh-i-Lal, Tajikistan) are very close to the borderline between the two minerals, and both of these minerals are probably present at many localities.
Clinohumite may contain some Ti and the varietal name titanclinohumite (older literature uses the name "titanolivine" for this variety) is commonly used.
Clinohumite is often found associated with spinel in magnesium-rich skarns. This is the most common type of occurrence, but clinohumite is also known from other environments such as in volcanic ejecta, in metamorphosed peridotites and in alkaline-ultrabasic complexes. Clinohumite is often formed as a replacement of forsterite.
It is difficult to distinguish minerals in the humite-group, as they largely occur in the same environments and localities. Their physical and optical appearances are also similar, as is the occurrence of rounded crystals or anhedral grains. A quantitative chemical analysis (microprobe) combined with structural analyses (XRD) seem to be required to identify individual humite group species with absolute certainty. It is therefore quite possible that some of the locality entries and photos may be incorrectly identified as clinohumite.
Visit gemdat.org for gemological information about Clinohumite.
Clinohumite may contain some Ti and the varietal name titanclinohumite (older literature uses the name "titanolivine" for this variety) is commonly used.
Clinohumite is often found associated with spinel in magnesium-rich skarns. This is the most common type of occurrence, but clinohumite is also known from other environments such as in volcanic ejecta, in metamorphosed peridotites and in alkaline-ultrabasic complexes. Clinohumite is often formed as a replacement of forsterite.
It is difficult to distinguish minerals in the humite-group, as they largely occur in the same environments and localities. Their physical and optical appearances are also similar, as is the occurrence of rounded crystals or anhedral grains. A quantitative chemical analysis (microprobe) combined with structural analyses (XRD) seem to be required to identify individual humite group species with absolute certainty. It is therefore quite possible that some of the locality entries and photos may be incorrectly identified as clinohumite.
Visit gemdat.org for gemological information about Clinohumite.Unique Identifiers
Mindat ID:
1077
Long-form identifier:
mindat:1:1:1077:7
GUID
(UUID V4):
(UUID V4):
92b3212c-b84e-4e66-8687-4d306a921b55
IMA Classification of Clinohumite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1876
Classification of Clinohumite
9.AF.55
9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
9 : SILICATES (Germanates)
A : Nesosilicates
F : Nesosilicates with additional anions; cations in [4], [5] and/or only [6] coordination
52.3.2d.1
52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
3 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
3 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
17.1.12
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
17 : Silicates Containing other Anions
1 : Silicates with fluoride (not containing Al)
Mineral Symbols
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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Chu | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Chu | Kretz (1983) | Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279. |
| Chu | Siivolam & Schmid (2007) | Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download |
| Chu | Whitney & Evans (2010) | Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371 |
| Chu | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Pronunciation of Clinohumite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Clinohumite
Colour:
White; yellow to brown with increasing Ti; orange; pinkish
Hardness:
6 on Mohs scale
Cleavage:
Poor/Indistinct
Cleavage on {100}.
Cleavage on {100}.
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.17 - 3.35 g/cm3 (Measured) 3.279 g/cm3 (Calculated)
Comment:
Depends mainly on Mg:Fe ratio and O:F ratio.
Optical Data of Clinohumite
Type:
Biaxial (+)
RI values:
nα = 1.623 - 1.702 nβ = 1.636 - 1.709 nγ = 1.651 - 1.728
2V:
Measured: 52° to 90°, Calculated: 64° to 88°
Max Birefringence:
δ = 0.028
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
weak
Chemistry of Clinohumite
Mindat Formula:
Mg9(SiO4)4F2
a n=4 member of the humite polysomatic series
a n=4 member of the humite polysomatic series
Elements listed:
Common Impurities:
Fe,Ti,Al,Mn,Ca,(OH)
Chemical Analysis
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | Mg8.805Fe0.006Ti0.214(Si0.993O4)4O0.42F0.76(OH)0.82. |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Kukh-i-Lal, Pyandzh River Valley, Gorno-Badakhshan, Tajikistan |
Crystallography of Clinohumite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 13.71 Å, b = 4.75 Å, c = 10.29 Å
β = 100.83°
β = 100.83°
Ratio:
a:b:c = 2.886 : 1 : 2.166
Unit Cell V:
658.18 ų (Calculated from Unit Cell)
Twinning:
Common on {100}, simple, lamellar.
Crystallographic forms of Clinohumite
Crystal Atlas:
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Clinohumite no.27 - Goldschmidt (1913-1926)
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Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0002338 | Clinohumite | Ottolini L, Camara F, Bigi S (2000) An investigation of matrix effects in the analysis of fluorine in humite-group minerals by EMPA, SIMS, and SREF American Mineralogist 85 89-102 |  | 2000 | 0 | 293 | |
| 0002663 | Clinohumite | Friedrich A, Lager G A, Kunz M, Chakoumakos B C, Smyth J R, Schultz A J (2001) Temperature-dependent single-crystal neutron diffraction study of natural chondrodite and clinohumite American Mineralogist 86 981-989 | | 2001 | 0 | 295 | |
| 0002664 | Clinohumite | Friedrich A, Lager G A, Kunz M, Chakoumakos B C, Smyth J R, Schultz A J (2001) Temperature-dependent single-crystal neutron diffraction study of natural chondrodite and clinohumite American Mineralogist 86 981-989 | | 2001 | 0 | 100 | |
| 0002665 | Clinohumite | Friedrich A, Lager G A, Kunz M, Chakoumakos B C, Smyth J R, Schultz A J (2001) Temperature-dependent single-crystal neutron diffraction study of natural chondrodite and clinohumite American Mineralogist 86 981-989 | | 2001 | 0 | 20 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
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Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.02 Å | (70) |
| 3.70 Å | (70) |
| 2.76 Å | (70) |
| 2.54 Å | (70) |
| 2.51 Å | (70) |
| 2.26 Å | (70) |
| 1.738 Å | (100) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 7 : Ultramafic igneous rocks | |
| High-𝑇 alteration and/or metamorphism | |
| 31 : Thermally altered carbonate, phosphate, and iron formations | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 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 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Clinohumite
Reference:
Des Cloizeaux, A.L.O.L. (1876) Über den humit; nur der I. Typus ist rhombisch, die beiden andern sind monoklin, doch mit verschiedenen grundformen. Neues Jahrbuch für Mineralogie, Geologie und Palaontologie, 1876, 640-645.
Other Language Names for Clinohumite
German:Clinohumit
Klinohumit
Klinohumit
Russian:Клиногумит
Simplified Chinese:斜硅镁石
Spanish:Clinohumita
Traditional Chinese:斜矽鎂石
Relationship of Clinohumite to other Species
Member of:
Other Members of this group:
| Chondrodite | Mg5(SiO4)2F2 | Mon. 2/m : P21/b |
| Humite | Mg7(SiO4)3F2 | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Hydroxylchondrodite | Mg5(SiO4)2(OH)2 | Mon. 2/m : P21/b |
| Hydroxylclinohumite | Mg9(SiO4)4(OH)2 | Mon. 2/m : P21/b |
| Norbergite | Mg3(SiO4)F2 | Orth. mmm (2/m 2/m 2/m) |
| Unnamed (OH-analogue of humite) | Mg7(SiO4)3(OH)2 | Orth. |
Common Associates
Associated Minerals Based on Photo Data:
| 80 photos of Clinohumite associated with Spinel | MgAl2O4 |
| 39 photos of Clinohumite associated with Calcite | CaCO3 |
| 9 photos of Clinohumite associated with Graphite | C |
| 5 photos of Clinohumite associated with Ludwigite | Mg2Fe3+(BO3)O2 |
| 4 photos of Clinohumite associated with Forsterite | Mg2SiO4 |
| 3 photos of Clinohumite associated with Dolomite | CaMg(CO3)2 |
| 3 photos of Clinohumite associated with Szaibélyite | MgBO2(OH) |
| 3 photos of Clinohumite associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 3 photos of Clinohumite associated with Kotoite | Mg3[BO3]2 |
| 3 photos of Clinohumite associated with Chrome-Tremolite | ◻{Ca2}{Mg5}(Si8O22)(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 9.AF. | Chegemite | Ca7(SiO4)3(OH)2 |
| 9.AF. | Barwoodite | Mn2+6Nb5+(SiO4)2O3(OH)3 |
| 9.AF. | Jingwenite-(Y) | YAlV4+(SiO4)O2(OH)2 |
| 9.AF.05 | Sillimanite | Al2(SiO4)O |
| 9.AF.05 | Xenolite | Al10Si8O31 |
| 9.AF.10 | Andalusite | Al2(SiO4)O |
| 9.AF.10 | Kanonaite | Mn3+Al(SiO4)O |
| 9.AF.15 | Kyanite | Al2(SiO4)O |
| 9.AF.20 | Mullite | Al4+2xSi2-2xO10-x |
| 9.AF.20 | Krieselite | Al2(GeO4)F2 |
| 9.AF.23 | Boromullite | Al9BSi2O19 |
| 9.AF.25 | Yoderite | Mg(Al,Fe3+)3(SiO4)2O(OH) |
| 9.AF.30 | Magnesiostaurolite | Mg(Mg,Li)3(Al,Mg)18Si8O44(OH)4 |
| 9.AF.30 | Staurolite | Fe2+2Al9Si4O23(OH) |
| 9.AF.30 | Zincostaurolite | Zn2Al9Si4O23(OH) |
| 9.AF.35 | Topaz | Al2(SiO4)(F,OH)2 |
| 9.AF.40 | Norbergite | Mg3(SiO4)F2 |
| 9.AF.45 | Alleghanyite | Mn2+5(SiO4)2(OH)2 |
| 9.AF.45 | Chondrodite | Mg5(SiO4)2F2 |
| 9.AF.45 | Reinhardbraunsite | Ca5(SiO4)2(OH,F)2 |
| 9.AF.45 | Kumtyubeite | Ca5(SiO4)2F2 |
| 9.AF.45 | Hydroxylchondrodite | Mg5(SiO4)2(OH)2 |
| 9.AF.50 | Humite | Mg7(SiO4)3F2 |
| 9.AF.50 | Manganhumite | (Mn2+,Mg)7(SiO4)3(OH)2 |
| 9.AF.50 | Unnamed (Ca-analogue of Humite) | Ca7(SiO4)4F2 |
| 9.AF.50 | Fluorchegemite | Ca7(SiO4)3F2 |
| 9.AF.50 | Unnamed (OH-analogue of humite) | Mg7(SiO4)3(OH)2 |
| 9.AF.55 | Sonolite | Mn2+9(SiO4)4(OH)2 |
| 9.AF.55 | Hydroxylclinohumite | Mg9(SiO4)4(OH)2 |
| 9.AF.60 | Leucophoenicite | Mn2+7(SiO4)3(OH)2 |
| 9.AF.65 | Ribbeite | Mn2+5(SiO4)2(OH)2 |
| 9.AF.70 | Jerrygibbsite | Mn2+9(SiO4)4(OH)2 |
| 9.AF.75 | Franciscanite | Mn2+6(V5+,◻)2(SiO4)2(O,OH)6 |
| 9.AF.75 | Örebroite | Mn2+3(Sb5+,Fe3+)(SiO4)(O,OH)3 |
| 9.AF.75 | Welinite | Mn2+6(W6+,Mg)2(SiO4)2(O,OH)6 |
| 9.AF.75 | Scorticoite | Mn6(Sb,◻)Σ2(SiO4)2O3(OH)3 |
| 9.AF.80 | Ellenbergerite | Mg6(Mg,Ti,Zr,◻)2(Al,Mg)6Si8O28(OH)10 |
| 9.AF.85 | Chloritoid | (Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2 |
| 9.AF.85 | Magnesiochloritoid | MgAl2(SiO4)O(OH)2 |
| 9.AF.85 | Ottrélite | (Mn2+,Fe2+,Mg)Al2(SiO4)O(OH)2 |
| 9.AF.90 | Poldervaartite | CaCa[SiO3(OH)](OH) |
| 9.AF.90 | Olmiite | CaMn2+[SiO3(OH)](OH) |
| 9.AF.95 | Pilawite-(Y) | Ca2Y2Al4(SiO4)4O2(OH)2 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Clinohumite in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Clinohumite
mindat.org URL:
https://www.mindat.org/min-1077.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
References for Clinohumite
Reference List:
Robinson, Keith, Gibbs, G. V., Ribbe, and Paul H. (1973) The crystal structures of the humite minerals. IV. Clinohumite and titanoclinohumite. American Mineralogist, 58 (1-2) 43-49
Localities for Clinohumite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Afghanistan | |
| rruff.info (n.d.) +1 other reference |
| Dudley Blauwet Private Communication +2 other references |
| RWMW Collection | |
Antarctica | |
| Kogarko et al. (2007) |
| Grew et al. (1991) |
Australia | |
| Dampier Mining Company Ltd (1977) |
| Shaw (1970) |
| Bottrill & Baker (2008) |
| Bottrill +1 other reference |
| Bottrill et al. (2008) |
Austria | |
| Niedermayr et al. (1995) |
| Kolitsch (2023) +1 other reference |
| Erwin Löffler & Gerald Knobloch ... |
| Knobloch (2004) +1 other reference | |
| Niedermayr (2007) |
| Löffler et al. (2011) | |
| Exel (1993) |
| Exel (1993) |
| Aufschluss 1972 (SB) |
| Tropper (2001, 2007) +3 other references |
| Purtscheller et al. (1985) |
| Hoernes S. et al. (1971) | |
| Hoernes S. et al. (1971) |
| Exel (1993) |
| Exel (1993) | |
| Exel (1993) |
| Franz et al. (1981) |
Brazil | |
| Mesquita et al. (2017) |
| Souza Neto et al. (2008) |
| Gaspar (1992) +1 other reference |
| American Mineralogist +4 other references | |
Bulgaria | |
| |
Canada | |
| Abersteiner et al. (2018) |
| 181. +1 other reference |
| 162-165. +1 other reference |
| Maggie Wilson +1 other reference |
| Jacob Stanaszek Collection | |
| Anthony et al. (1990) |
| Sabina A. P. (1986) +1 other reference |
| Sabina A. P (1977) |
| Strübel |
| Van Velthuizen (1993) |
| Sabina (1987) |
| Hull-Maniwaki +1 other reference |
China | |
| Am. Min. |
| Zhao et al. (1999) +1 other reference |
| Yiming Zhao et al. (1998) +2 other references | |
| Yiming Zhao et al. (1999) +1 other reference | |
| Yongxue Xu et al. (1985) +1 other reference |
| Junwu Lu and Yuanfa Xia (2001) |
| Meng +5 other references |
| Qingchang Meng (1981) |
| Liu Xiangwen et al. (2005) +1 other reference |
| Tianfu Li et al. (2006) |
| Matsuda (1969) |
| Xuehui Xia et al. (2006) +1 other reference |
| Wenwei Lin (1987) |
| Rongge Xiao et al. (2007) |
| Yiming Zhao et al. (1998) |
| Wang +10 other references |
| - (n.d.) |
| Chen et al. (2022) |
| Wang et al. (2023) |
| Wang et al. (2023) |
Colombia | |
| Castellanos-Alarcón et al. (2016) |
Czech Republic | |
| Hofmanovi P. a R.: Mineralizace ... |
| Černý | |
| Štědrá V.: Ca-Ba-Mn trhlinová ... |
| Litochleb |
| Němec |
| Němec |
| Houzar et al. (2008) |
| Houzar S.: Zinkem a baryem bohaté minerální asociace (sfalerit - Zn-spinel - hyalofán - Ba-flogopit) |
| Němec | |
| Němec | |
| Němec | |
| Němec |
| Němec | |
| Němec |
| Pauliš |
| Němec |
Finland | |
| Vartiainen +22 other references |
| Kresten et al. (1977) +2 other references |
| Hytönen (1999) |
| |
| Hytönen (1999) |
France | |
| Queneau (n.d.) |
| Dubru. M (1986) |
Germany | |
| Weiß (1990) |
| Weiß (1990) |
| Blass |
| WITZKE (2018) |
| Wittern (2001) |
Greenland | |
| Petersen et al. (1985) |
India | |
| Krishnamurthy (1985) +2 other references |
| Satish-Kumar et al. (2001) |
Indonesia | |
| New (2006) |
Italy | |
| Dal Piaz (1967) |
| Erik Vercammen collection |
| Dal Piaz (2004) | |
| Dal Piaz (2004) | |
| Dal Piaz (2004) | |
| Dal Piaz (1967) | |
| Gramaccioli (1975) | |
| Dal Piaz et al. (2008) | |
| Pelloux (1946) +2 other references | |
| Dal Piaz (1967) +1 other reference | |
| C.M. Gramaccioli (1975) |
| Grill (1922) +3 other references | |
| Grill (1922) +4 other references | |
| Castello (1978) +1 other reference |
| Balassone et al. (2024) +1 other reference |
| Lapis 1994:5 p.13-23 +1 other reference |
| Russo et al. (2004) |
| luigi mattei |
| |
| Antofilli |
| Del Caldo et al. (1973) +3 other references |
| Cerea et al. (2019) |
| Eur. J. Mineral. |
| Sigismund (1949) +1 other reference |
| Del Caldo et al. (1973) +3 other references | |
| Gramaccioli (1975) +1 other reference | |
| Bedognè et al. (1993) | |
| Bedognè et al. (1993) | |
| Mauro (1910) +1 other reference | |
| Gramaccioli (1962) +1 other reference | |
| Gramaccioli (1962) +1 other reference | |
| AA. VV. | |
| AA. VV. | |
| Bedognè et al. (1993) |
| De Michele (1974) |
| Gramaccioli (1962) +1 other reference |
| Ghizzoni et al. (2005) |
| Ghizzoni et al. (2005) | |
| Ghizzoni et al. (2005) | |
| Ghizzoni et al. (2005) | |
| Sigismund (1949) +1 other reference |
| Sigismund (1949) +1 other reference |
| Tomasi (1950) |
| Prete (1995) |
| Gramaccioli (1975) | |
| Gramaccioli (1975) |
| Groppo et al. (2007) |
| Boeris (1902) +2 other references |
| Groppo et al. (2007) |
| Boeris (1902) +3 other references | |
| Boeris (1902) +3 other references | |
| Boeris (1902 a) +3 other references |
| Bucher-Nurminen K. (1982) |
| Ferry J.M. et al. (2002) |
| Gieré et al. (1992) |
Japan | |
| Arai +4 other references |
| Excalibur Mineral Co. specimens |
| Watanabe et al (1963) |
Kazakhstan | |
| Tectonophysics [T] T21A-0501 0800h ... |
Kyrgyzstan | |
| Soloviev (2011) |
Madagascar | |
| Michel Arliguie collection & photo (Photo ID: 966934, old sample) |
| rruff.info (2008) | |
| Knut Edvard Larsen collection (# M-569 + M-576) |
Mexico | |
| www.diabras.com (2007) |
Myanmar | |
| Myint Myat Phyo et al. (2019) |
| Themelis (2008) |
Namibia | |
| von Bezing (2007) |
| Werner & Marianne Teich collection | |
| A. Wohlschläger (2001) |
North Korea | |
| Handbook of Mineralogy |
| watanabe (in: Geology and Mineral Resources of the Far East, University of Tokyo Press, 1969) +1 other reference | |
| Satou (1933) |
Norway | |
| Raade (1973) +1 other reference |
| BARTH (1925) |
| Vogt (1910) |
| Bøe (1997) +1 other reference |
| Bucher-Nurminen (1981) |
| Dolomitic marble lens outcropping at ... +1 other reference | |
| Knut Eldjarn specimens +1 other reference | |
| Bucher-Nurminen (1981) | |
| Bucher-Nurminen (1981) | |
| André Heyninck collection & photo ( photo-1097425, Ex Torfinn Kjærnet collection) | |
Romania | |
| www.minerals-of-the carpathians.eu (2009) |
| Shimizu et al. (1998) | |
| Marincea et al. (2023) |
| Aleksandrov (2007) |
| new data and review. The Canadian Mineralogist (6) +2 other references | |
| Marincea (2000) |
| Szakáll (2002) |
Russia | |
| Cesnokov et al. (1998) |
| Popov et al. (2001) +1 other reference |
| |
| Sklyarov +4 other references | |
| Lennikov et al. (2004) |
| Dvorani (2016) |
| Pavel.M. Kartashov (n.d.) | |
| Kogarko (1995) |
| Veksler et al. (1998) +5 other references |
| Krasnova (2001) | |
| [World of Stones 95:5-6 +3 other references | |
| ... |
| [World of Stones 12:49] | |
| Pavel.M. Kartashov (n.d.) +2 other references |
| Sharygin et al. (2008) |
| maurice.strahlen.org (2004) +1 other reference |
| Galuskina et al. (2008) |
| W. Schreyer et al. (2003) |
| Sharygin (2016) +1 other reference |
Slovakia | |
| Vladimír Bilohuščin (2016) +1 other reference |
South Africa | |
| Cairncross et al. (1995) |
| Cairncross et al. (1995) | |
South Korea | |
| Kinosaki (1941) |
Spain | |
| Evans et al. (2012) |
| Museum geology Málaga | Minerales y Tesoros de la Tierra (collections website retrieved 12-27-2017) |
| Romero Silva (2003) +1 other reference | |
| Colección Juan A.M. Barnestein |
| Colección Juan A.M. Barnestein +1 other reference | |
| Romero Silva (2003) | |
| Locker et al. (2012) |
| Romero Silva (2003) | |
| www.foro-minerales.com (n.d.) |
| Calvo Rebollar (2018) |
| www.foro-minerales.com (n.d.) |
| Martin-Izard et al. (1995) |
Sweden | |
| |
| Welin (1964) |
| Wilke (1997) |
| Gustafsson et al. (1991) +1 other reference |
| Damman et al. (1990) |
| Holtstam et al. (1999) |
| The Mineralogical Record: 32: 311. +1 other reference |
| |
| Sandström et al. (2009) |
| Zakrezewski et al. (1992) | |
| |
Switzerland | |
| De Quervain (1936) +4 other references |
| de Quervain (1963) +2 other references | |
| De Quervain (1936) +5 other references | |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| Stalder et al. (1998) |
| Christian Bracke Collection |
| Meisser et al. (1990) |
Tajikistan | |
| Pavel.M. Kartashov (n.d.) +3 other references |
Tanzania | |
| www.fieldgemology.org (2008) +1 other reference |
| Hintze (2011) | |
| Hintze (2011) | |
| Moore (2005) |
| Fritz et al. (2007) |
UK | |
| Render (n.d.) |
| |
| [Specimen in the Natural History Museum |
| Day (1999) | |
| Render (n.d.) |
USA | |
| - (2008) |
| Balk (1954) +4 other references |
| Van Nostrand Reinholt Press: 460. +2 other references |
| Van Nostrand Reinholt Press: 147 +2 other references |
| www.mineralsocal.org | |
| Van Nostrand Reinholt Press: 460. +2 other references |
| Burnham (1959) +1 other reference |
| DeVito et al. (1984) |
| Cal Div of Mines & Geo Bulletin 189 " ... |
| Otton +2 other references |
| Econ Geol (1988) |
| Spry et al. (2021) |
| Eckel et al. (1997) |
| Spry et al. (2021) |
| Eckel et al. (1997) |
| Am Min 50:1179-1212 +2 other references |
| Eckel et al. (1997) |
| Eckel et al. (1997) |
| Eckel et al. (1997) +1 other reference | |
| Ream (2004) |
| Harvard Mineralogical Museum no.130909. |
| Heinrich (1963) +1 other reference |
| Reilly et al. (1983) +2 other references |
| NMBGMR Open-file Report OF-459 |
| Northrop et al. (1996) +1 other reference |
| New Mexico GeologicalSociety Guidebook |
| Maertens (2023) |
| NY State Museum spec. no. 19334 | |
| Manchester (1931) |
| - (Januzzi, 1966, 1989) |
| King (n.d.) |
| Rocks & Min. vol. 72 (1997) |
| AmMin 42:686 (1957) | |
| - (2005) |
| Bullock (1981) |
| Woodford et al. (2001) |
| New Mexico GeologicalSociety Guidebook |
| New Mexico GeologicalSociety Guidebook | |
| New Mexico GeologicalSociety Guidebook | |
| New Mexico GeologicalSociety Guidebook | |
| Cannon (1975) |
| Cannon (1975) |
Vietnam | |
| Xu et al. (2024) |
| Krivovichev et al. (2022) | |
Zimbabwe | |
| Sminia et al. (2006) |
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