Monticellite
A valid IMA mineral species - grandfathered
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About Monticellite
Formula:
CaMgSiO4
Colour:
Colourless, grey or greenish
Lustre:
Vitreous, Resinous
Hardness:
5 - 5½
Specific Gravity:
3.03 - 3.27
Crystal System:
Orthorhombic
Member of:
Name:
Named by H.J. Brooke (1831) after Teodoro Monticelli (1759-1845). He published several works on Mount Vesuvius, including "Storia dei fenomeni del Vesuvio" (1823) and "Prodromo della mineralogia vesuviana" (1825). The latter together with Niccolò Covelli (see covellite).
Unique Identifiers
Mindat ID:
2768
Long-form identifier:
mindat:1:1:2768:3
GUID
(UUID V4):
(UUID V4):
33f41888-cbd8-4b2f-80dd-afcdaf258636
IMA Classification of Monticellite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
CaMg(SiO4)
First published:
1831
Classification of Monticellite
9.AC.10
9 : SILICATES (Germanates)
A : Nesosilicates
C : Nesosilicates without additional anions; cations in octahedral [6] coordination
9 : SILICATES (Germanates)
A : Nesosilicates
C : Nesosilicates without additional anions; cations in octahedral [6] coordination
51.3.2.1
51 : NESOSILICATES Insular SiO4 Groups Only
3 : Insular SiO4 Groups Only with all cations in octahedral [6] coordination
51 : NESOSILICATES Insular SiO4 Groups Only
3 : Insular SiO4 Groups Only with all cations in octahedral [6] coordination
14.6.10
14 : Silicates not Containing Aluminum
6 : Silicates of Ca with alkali or Mg or both
14 : Silicates not Containing Aluminum
6 : Silicates of Ca with alkali or Mg or both
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 |
---|---|---|
Mtc | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Mtc | Kretz (1983) | Kretz, R. (1983) Symbols of rock-forming minerals. American Mineralogist, 68, 277–279. |
Mtc | 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 |
Mtc | 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 |
Mtc | 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 Monticellite
Pronunciation:
Play | Recorded by | Country |
---|---|---|
Jolyon Ralph | United Kingdom |
Physical Properties of Monticellite
Vitreous, Resinous
Transparency:
Transparent, Translucent
Comment:
Slightly resinous when massive
Colour:
Colourless, grey or greenish
Streak:
White
Hardness:
5 - 5½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
Poor on {010}.
Poor on {010}.
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.03 - 3.27 g/cm3 (Measured) 3.058 g/cm3 (Calculated)
Optical Data of Monticellite
Type:
Biaxial (-)
RI values:
nα = 1.639 - 1.663 nβ = 1.645 - 1.674 nγ = 1.653 - 1.680
2V:
Measured: 88° to 65°, Calculated: 72° to 84°
Max Birefringence:
δ = 0.014 - 0.017
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:
Moderate
Dispersion:
relatively weak
Optical Extinction:
X = b; Y = c; Z = a.
Chemistry of Monticellite
Mindat Formula:
CaMgSiO4
Elements listed:
Common Impurities:
Ti,Al,Fe,Mn,Zn,H2O
Crystallography of Monticellite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 4.815 Å, b = 11.08 Å, c = 6.37 Å
Ratio:
a:b:c = 0.435 : 1 : 0.575
Unit Cell V:
339.84 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Well-formed prismatic crystals, to 5 cm; massive, granular.
Twinning:
On {031}, producing six-pointed star-shaped forms.
Comment:
Space Group: Pbnm:
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) |
---|---|---|---|---|---|---|---|
0000646 | Monticellite | Lager G A, Meagher E P (1978) High-temperature structural study of six olivines American Mineralogist 63 365-377 | 1978 | 0 | 298 | ||
0000647 | Monticellite | Lager G A, Meagher E P (1978) High-temperature structural study of six olivines American Mineralogist 63 365-377 | 1978 | 0 | 608 | ||
0000648 | Monticellite | Lager G A, Meagher E P (1978) High-temperature structural study of six olivines American Mineralogist 63 365-377 | 1978 | 0 | 888 | ||
0000649 | Monticellite | Lager G A, Meagher E P (1978) High-temperature structural study of six olivines American Mineralogist 63 365-377 | 1978 | 0 | 1068 | ||
0001096 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 0.0001 | 293 | ||
0001097 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 1.11 | 293 | ||
0001098 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 1.11 | 293 | ||
0001099 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 2.07 | 293 | ||
0001100 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 2.91 | 293 | ||
0001101 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 4.12 | 293 | ||
0001102 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 5.3 | 293 | ||
0001103 | Monticellite | Sharp Z D, Hazen R M, Finger L W (1987) High-pressure crystal chemistry of monticellite, CaMgSiO4 American Mineralogist 72 748-755 | 1987 | 6.17 | 293 | ||
0019700 | Monticellite | Pilati T, Demartin F, Gramaccioli C M (1995) Thermal parameters for minerals of the olivine group: their implication on vibrational spectra, thermodynamic functions and transferable force fields Acta Crystallographica B51 721-733 | 1995 | Crestmore, California, USA | 0 | 293 | |
0018072 | Monticellite | Brown G, West J (1927) The structure of monticellite (Mg Ca Si O4). _cod_database_code 1011202 Zeitschrift fur Kristallographie 66 154-161 | 1927 | 0 | 293 | ||
0014814 | Monticellite | Kimata M, Nishida N (1987) The crystal structure of Co-monticellite Ca1.255Co0.745SiO4 and its significance as a solid solution crystal Neues Jahrbuch fur Mineralogie, Monatshefte 1987 160-170 | 1987 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Image Loading
Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.666 Å | (100) |
3.637 Å | (40) |
2.586 Å | (40) |
4.185 Å | (35) |
2.935 Å | (35) |
2.543 Å | (30) |
1.818 Å | (30) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 2: Planetesimal differentiation and alteration | 4.566-4.550 |
6 : Secondary asteroid phases | 4.566-4.560 |
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 |
35 : Ultra-alkali and agpaitic 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 |
Type Occurrence of Monticellite
General Appearance of Type Material:
Crystals with a general shape similar to quartz.
Place of Conservation of Type Material:
University of Naples, Naples, Italy, 22111.
Associated Minerals at Type Locality:
Reference:
Brooke, H.J. (1831) On Monticellite, a new Species of Mineral. The Philosophical Magazine, Or Annals of Chemistry, Mathematics, Astronomy, Natural History and General Science: 10: 265-266.
Synonyms of Monticellite
Other Language Names for Monticellite
German:Monticellit
Russian:Монтичеллит
Simplified Chinese:钙镁橄榄石
Spanish:Monticellita
Traditional Chinese:鈣鎂橄欖石
Relationship of Monticellite to other Species
Member of:
Other Members of this group:
Calcio-olivine | Ca2SiO4 | Orth. mmm (2/m 2/m 2/m) |
Fayalite | Fe2+2SiO4 | Orth. mmm (2/m 2/m 2/m) |
Forsterite | Mg2SiO4 | Orth. mmm (2/m 2/m 2/m) |
Glaucochroite | CaMn2+SiO4 | Orth. mmm (2/m 2/m 2/m) |
Kirschsteinite | CaFe2+SiO4 | Orth. mmm (2/m 2/m 2/m) : Pnma |
Laihunite | (Fe2+0.5◻0.5)Fe3+[SiO4] | Mon. 2/m : P21/b |
Liebenbergite | Ni2SiO4 | Orth. mmm (2/m 2/m 2/m) |
Tephroite | Mn2+2SiO4 | Orth. mmm (2/m 2/m 2/m) : Pnma |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
16 photos of Monticellite associated with Calcite | CaCO3 |
7 photos of Monticellite associated with Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
6 photos of Monticellite associated with Perovskite | CaTiO3 |
6 photos of Monticellite associated with Harkerite | Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl) |
5 photos of Monticellite associated with Pyrochlore Group | A2Nb2(O,OH)6Z |
5 photos of Monticellite associated with Afwillite | Ca3(HSiO4)2 · 2H2O |
5 photos of Monticellite associated with Ettringite | Ca6Al2(SO4)3(OH)12 · 26H2O |
5 photos of Monticellite associated with Gypsum | CaSO4 · 2H2O |
5 photos of Monticellite associated with Dysanalyte | CaTiO3 |
4 photos of Monticellite associated with Calcite-carbonatite |
Related Minerals - Strunz-mindat Grouping
9.AC. | Ahrensite | SiFe2O4 |
9.AC. | Poirierite | Mg2SiO4 |
9.AC.05 | Fayalite | Fe2+2SiO4 |
9.AC.05 | Forsterite | Mg2SiO4 |
9.AC.05 | Glaucochroite | CaMn2+SiO4 |
9.AC.05 | Kirschsteinite | CaFe2+SiO4 |
9.AC.05 | Laihunite | (Fe2+0.5◻0.5)Fe3+[SiO4] |
9.AC.05 | Liebenbergite | Ni2SiO4 |
9.AC.05 | Tephroite | Mn2+2SiO4 |
9.AC.15 | Brunogeierite | Ge4+Fe2+2O4 |
9.AC.15 | Ringwoodite | (Mg,Fe2+)2SiO4 |
9.AC.20 | Chesnokovite | Na2[SiO2(OH)2] · 8H2O |
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.
Monticellite in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Monticellite
mindat.org URL:
https://www.mindat.org/min-2768.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Monticellite
Reference List:
Localities for Monticellite
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).
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.
All localities listed without proper references should be considered as questionable.
Afghanistan | |
| Woolley (2019) |
Peters et al. (2007) | |
| Merkel et al. (2013) |
Antarctica | |
| S. F. Foley et al. (2002) |
| Kojima et al. (1995) +1 other reference |
Australia | |
| Reference: Keeling J. et al.MESA ... |
| Parbhakar-Fox |
| Kiviets et al. (1998) |
Austria | |
| Kolitsch et al. (2013) |
Bolivia | |
| Schultz (2004) |
Brazil | |
| Kaminsky et al. (2015) |
| Coldebella et al. (2020) |
| Gibson et al. (1995) |
| 1995 +1 other reference |
| Berger et al. (2009) |
Bulgaria | |
| I. Kostov et al. (1964) |
Canada | |
| I.C.L. Webster (1992) |
| Richard Gunter Collection |
| Sabina (1972) |
| OWENS et al. (2010) |
Am Min 85:1595–1605 (2000) | |
| Maya G. Kopylova et al. (2010) |
Masun (1999) +2 other references | |
| Abersteiner et al. (2020) +1 other reference |
Abersteiner et al. (2018) | |
| Caro et al. (2004) |
| Chatterjee (1980) |
| Chatterjee (1977) |
| December 1994 +3 other references |
| 162-165. +1 other reference |
| Sabina (1982) |
| Wu et al. (2010) |
| Sabina (1968) +1 other reference |
Gold (1969) | |
Sabina (1968) +1 other reference | |
Gaston Pouliot (1970) +1 other reference | |
| Bowen +2 other references |
| Daniel F. Rosa and Robert F. Martin (2010) |
| Currie (1976) |
Berger et al. (2009) | |
China | |
| Yu et al. (2001) +2 other references |
| Wang (1983) |
| Cao Zhengmin (2000) |
| Zhengmin Cao and Weijiong Zhu (1993) |
| Huilong Yu (1985) |
| Zhuangzhi Qian et al. (2004) |
| Zhuangzhi Qian et al. (2004) +1 other reference |
| Yunnan Metallurgical Geology Team No. 310 (1977) |
Colombia | |
| Castellanos-Alarcón et al. (2016) |
Czech Republic | |
| Šrein |
| Ulrych +8 other references |
DR Congo | |
| MinMag 58:496 |
Finland | |
| O´Brien Hugh |
France | |
| A. M. Davis (1985) |
Germany | |
| Bender et al. (1994) +1 other reference |
| Jeroen Goedhart |
| Lapis (5) +1 other reference |
| Pfeiffer (1994) +2 other references |
Greenland | |
| Petersen et al. (1985) |
Steenfelt et al. (2007) +1 other reference | |
India | |
| Gupta et al. (1986, September) +2 other references |
AJIT KUMAR REDDY (1987) +1 other reference | |
| Kaur et al. (2013) |
Shaikh et al. (2018) | |
| Krishnamurthy (1985) +1 other reference |
| Deb (1980) |
| Mineralogical Magazine 1996 60 : 513-516 |
Indonesia | |
| Mertig et al. (1994) |
Mertig et al. (1994) | |
Rubin et al. (1997) | |
Prendergast (2003) | |
Amer.Min. (1995) | |
Mackinney et al. (1988) | |
New (2006) | |
Iraq | |
| Al-Hermezi et al. (1986) |
Ireland | |
| S. R. Nockolds and H. G. C. Vincent (1947) |
Italy | |
| Stoppa et al. (2009) |
| Stoppa +13 other references |
| Brooke (1831) +1 other reference |
| rearley et al. (1998) |
| Orlandi P. - (1975) |
| Stoppa et al. (2019) |
| F. Stoppa and Y. Liu +6 other references |
| Maida (2002) |
| Bedognè et al. (2006) +1 other reference |
| Piccoli et al. (2007) |
| Munno R. et al. (1980) |
| Exel (1987) +1 other reference |
De Michele (1974) | |
De Michele (1974) | |
| De Michele (1974) |
| Exel (1987) |
De Michele (1974) | |
| Avanzini et al. (2007) |
| Sperl (1980) |
| F. Stoppa and Y. Liu +7 other references |
| Sabatini (1899) +19 other references |
| Boscardin M. et al. (Vicenza) |
| Boscardin et al. (1988) +2 other references |
Japan | |
| Kusachi et al (1979) |
| Nagata (1982) |
| Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan) |
Alfredo Petrov collection | |
| Kishi et al (2003) |
Malawi | |
| Garson +6 other references |
Mexico | |
| Espejel-Garcia et al. (2012, December) |
| Brearley et al. (1998) |
| www.diabras.com (2007) |
| Panczner (1987) |
Middle East | |
Gross (1977) | |
Namibia | |
| Ettler et al. (2009) |
| Verwoerd (1967) +11 other references |
Kurszlaukis et al. (1997) | |
Norway | |
| Jamtveit et al. (1997) |
| Nordrum (2005) |
Pakistan | |
| Ahmed et al. (1990) +3 other references |
Poland | |
| Łobos K. et al. (2019) |
| Warchulski et al. (2015) |
Warchulski et al. (2015) | |
| Warchulski et al. (2015) |
Romania | |
| Marincea +4 other references |
| Marincea et al. (2011) |
| Marincea et al. (2014, September) +1 other reference |
| The Canadian Mineralogist Vol. 39 (2001) |
Marincea +3 other references | |
| Szakáll (2002) |
Russia | |
| Dumańska-Słowik et al. (2022) |
| Konnikov et al. (2000) +1 other reference |
Kislov +1 other reference | |
Kislov +1 other reference | |
Kislov +2 other references | |
| Ashchepkov +8 other references |
11 (4) +1 other reference | |
| |
Sklyarov et al. (2021) | |
| Armbruster et al. (2011) +1 other reference |
| Sharygin et al. (2018) |
| doi.org (n.d.) +1 other reference |
| Pavel.M. Kartashov (n.d.) +1 other reference |
| Sokol et al. (2019) +3 other references |
| Reverdatto et al. (1979) |
| Wu et al. (2010) +1 other reference |
Kogarko et al. (1991) | |
Henderson et al. (1999) | |
| Potter et al. (2017) |
... | |
Arzamastsev et al. (1990) +2 other references | |
| Subbotin et al. (1998) +4 other references |
| Fomina et al. (2020) |
| ... |
A. N. Korobeinikov et al. (1998) | |
| ... +2 other references |
| Putintseva et al. (2017) |
| Chayka +9 other references |
| Boyd et al. (1997) +2 other references |
| Novgorodova M.I. (1996) |
Yakovlev et al. (2008, October) | |
Sharygin et al. (2021, October) | |
| Victor V. Sharygin analytical data |
Slovakia | |
| Ďuďa R. et al. (Schemnitz) |
| Koděra P. et al. (štiavnický stratovulkán) +2 other references |
South Africa | |
| Cairncross et al. (1995) |
| Grobler et al. (2019) |
| Abersteiner et al. (2019) |
Field et al. (2008) +1 other reference | |
| Giuliani et al. (2017) |
Spain | |
| Coello et al. (92) +9 other references |
Casillas et al. (2011) | |
Sweden | |
| Sandström et al. (2010) |
Tanzania | |
| Mitchell et al. (2021) |
| Mitchell et al. (2004) +1 other reference |
Turkey | |
| Taner et al. (2013) |
Uganda | |
| Barker et al. (1989) |
UK | |
| Cann (1965) |
| Tilley (1947) |
| HOLNESS (1992) |
| |
| [Specimen in the Natural History Museum |
Beard et al. (2007) | |
| Agrell (1965) |
Ukraine | |
| Yatsenko et al. (2020) |
USA | |
| Greenwood et al. (1992) |
| stratigraphy +4 other references |
| Butler et al. (1938b) +1 other reference |
| USGS National Geochemical Database : ... |
| Rocks and Minerals (1976) +1 other reference |
Rocks and Minerals (1988) | |
Berger et al. (2009) | |
Rocks & Min.: 64:326. | |
V.C. Fryklund and D.F. Holbrook (1950) | |
| Eakle (1916) +4 other references |
| Moehlman et al. (1934) +1 other reference |
Woodford et al. (1941) | |
Woodford et al. (1941) | |
| Van Nostrand Reinholt Press: 479 +3 other references |
American Mineralogist (1935) | |
Museum Quarterly 43:99-104. | |
| Schaller (1935) +3 other references |
Schaller (1935) +3 other references | |
Abstracts with Program of the ... | |
| Eckel et al. (1997) |
| Larsen (1942) +1 other reference |
| Eckel et al. (1997) |
| Heinrich et al. (2004) |
| Hearn (2004) |
| Castor et al. (2004) |
| NMGS 21st Field Conference |
| AmMin 63:991 |
EOS: 60: 423. +2 other references | |
| Brearley et al. (1998) |
| Bikerman (1997) |
| Rocks & Minerals (1991) |
| Rocks & Minerals: 66 (3) +1 other reference |
| Bullock (1981) |
| Bullock (1981) |
| Field (1917) |
| Dodd (1971) |
| Dietrich (1990) |
Quick NavTopAbout MonticelliteUnique IdentifiersIMA Classification Classification Mineral SymbolsPronunciation Physical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationMonticellite in petrologyInternet Links References Localities Locality List
Caspar quarry, Ettringen, Vordereifel, Mayen-Koblenz, Rhineland-Palatinate, Germany