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Gehlenite

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Formula:
Ca
 
2
Al(AlSiO
 
7
)
System:TetragonalColour:yellow-brown, ...
Hardness:5 - 6
Member of:Melilite Group
Name:
After the German chemist, Adolf Ferdinand Gehlen (1775-1815).

Classification of Gehlenite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/C.02-15
Nickel-Strunz 10th (pending) edition ID:9.BB.10

9 : SILICATES (Germanates)
B : Sorosilicates
B : Si2O7 groups, without non-tetrahedral anions; cations in tetrahedral [4] and greater coordination
Dana 8th edition ID:55.4.1.2

55 : SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
4 : Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
Hey's CIM Ref.:16.9.1

16 : Silicates Containing Aluminum and other Metals
9 : Aluminosilicates of Ca
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Type Occurrence of Gehlenite

Type Locality:Monzoni Mts, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy
Year of Discovery:1815

Physical Properties of Gehlenite

Lustre:Vitreous, Greasy
Colour:yellow-brown, colourless, greenish grey
Streak:white, grey-white
Hardness (Mohs):5 - 6
Cleavage:Distinct/Good

Crystallography of Gehlenite

Crystal System:Tetragonal
Class (H-M):4 2m - Scalenohedral
Space Group:P4 21m
Cell Parameters:a = 7.6850(4) Å, c = 5.0636(3) Å
Ratio:a:c = 1 : 0.659
Unit Cell Volume:V 299.05 ų (Calculated from Unit Cell)
Z:2
Comment:Synthetic material.
X-Ray Powder Diffraction:
d-spacingIntensity
3.066 (43)
2.848 (100)
2.738 (32)
2.437 (38)
1.921 (64)
1.818 (75)
1.768 (36)

Optical Data of Gehlenite

Type:Uniaxial (-)
RI values: nω = 1.670 nε = 1.660
Maximum Birefringence:δ = 0.010

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Gehlenite

Formula:
Ca
 
2
Al(AlSiO
 
7
)
Simplified for copy/paste:Ca2Al(AlSiO7)
Essential elements:Al, Ca, O, Si
All elements listed in formula:Al, Ca, O, Si
Common Impurities:Ti,Fe,Mg,Mn,Na,K

Relationship of Gehlenite to other Species

Series:Forms a series with Åkermanite (see here)
Member of:Melilite Group
Other Members of Group:

- +
Åkermanite
Ca
 
2
Mg(Si
 
2
O
 
7
)
Alumoåkermanite
(Ca,Na)
 
2
(Al,Mg,Fe
2+
 
)(Si
 
2
O
 
7
)
Ferri-gehlenite
Ca
 
2
Fe
3+
 
AlSiO
 
7
Gugiaite
Ca
 
2
Be(Si
 
2
O
 
7
)
Hardystonite
Ca
 
2
Zn(Si
 
2
O
 
7
)
Okayamalite
Ca
 
2
B(BSiO
 
7
)
Related Minerals - Nickel-Strunz Grouping):

- +
9.BB.10Åkermanite
Ca
 
2
Mg(Si
 
2
O
 
7
)
9.BB.10Cebollite
Ca
 
5
Al
 
2
(SiO
 
4
)
 
3
(OH)
 
4
9.BB.10Gugiaite
Ca
 
2
Be(Si
 
2
O
 
7
)
9.BB.10Hardystonite
Ca
 
2
Zn(Si
 
2
O
 
7
)
9.BB.10Jeffreyite
(Ca,Na)
 
2
(Be,Al)(Si
 
2
O
 
7
,HSi
 
2
O
 
7
)
9.BB.10Okayamalite
Ca
 
2
B(BSiO
 
7
)
9.BB.10Alumoåkermanite
(Ca,Na)
 
2
(Al,Mg,Fe
2+
 
)(Si
 
2
O
 
7
)
9.BB.15Barylite
Be
 
2
Ba(Si
 
2
O
 
7
)
9.BB.15Barylite-1O
Be
 
2
Ba(Si
 
2
O
 
7
)
9.BB.20Andrémeyerite
BaFe
2+
2
(Si
 
2
O
 
7
)
Related Minerals - Hey's Index Grouping:

- +
16.9.2Anorthite
CaAl
 
2
Si
 
2
O
 
8
16.9.3Yoshiokaite
(Ca,Na)[Al(Al,Si)O
 
4
]
16.9.4Svyatoslavite
CaAl
 
2
Si
 
2
O
 
8
16.9.5Dmisteinbergite
CaAl
 
2
Si
 
2
O
 
8
16.9.6Grossular
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3
16.9.7Vuagnatite
CaAl(SiO
 
4
)(OH)
16.9.8Zoisite
{Ca
 
2
}{Al
 
3
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
16.9.9Clinozoisite
{Ca
 
2
}{Al
 
3
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
16.9.10Prehnite
Ca
 
2
Al
 
2
Si
 
3
O
 
10
(OH)
 
2
16.9.11Kamaishilite
Ca
 
2
(Al
 
2
SiO
 
6
)(OH)
 
2
16.9.12Bicchulite
Ca
 
2
(Al
 
2
SiO
 
6
)(OH)
 
2
16.9.13Margarite
CaAl
 
2
(Al
 
2
Si
 
2
O
 
10
)(OH)
 
2
16.9.14Chantalite
CaAl
 
2
(SiO
 
4
)(OH)
 
4
16.9.15Cebollite
Ca
 
5
Al
 
2
(SiO
 
4
)
 
3
(OH)
 
4
16.9.17Katoite
Ca
 
3
Al
 
2
(SiO
 
4
)
 
3-x
(OH)
 
4x
16.9.18Lawsonite
CaAl
 
2
(Si
 
2
O
 
7
)(OH)
 
2
· H
 
2
O
16.9.19Parthéite
CaAl
 
2
Si
 
2
O
 
8
· 2H
 
2
O
16.9.20Wairakite
Ca(Al
 
2
Si
 
4
O
 
12
) · 2H
 
2
O
16.9.21Vertumnite
Ca
 
4
Al
 
4
Si
 
4
O
 
6
(OH)
 
24
· 3H
 
2
O
16.9.22Scolecite
CaAl
 
2
Si
 
3
O
 
10
· 3H
 
2
O
16.9.23Laumontite
CaAl
 
2
Si
 
4
O
 
12
· 4H
 
2
O
16.9.24Yugawaralite
CaAl
 
2
Si
 
6
O
 
16
· 4H
 
2
O
16.9.25Gismondine-Ca
CaAl
 
2
Si
 
2
O
 
8
· 4H
 
2
O
16.9.26Epistilbite
CaAl
 
2
Si
 
6
O
 
16
· 5H
 
2
O
16.9.27Goosecreekite
Ca[Al
 
2
Si
 
6
O
 
16
] · 5H
 
2
O
16.9.28Cowlesite
CaAl
 
2
Si
 
3
O
 
10
· 6H
 
2
O
16.9.30Stellerite
Ca[Al
 
2
Si
 
7
O
 
18
] · 7H
 
2
O
16.9.31Strätlingite
Ca
 
2
Al
 
2
SiO
 
7
· 8H
 
2
O
16.9.32Amstallite
CaAl(Si,Al)
 
4
O
 
8
(OH)
 
4
· (H
 
2
O,Cl)

Other Names for Gehlenite

Synonyms:
Velardenite
Other Languages:
German:Adiaphanspat
Gehlenit
Russian:Геленит
Simplified Chinese:钙铝黄长石
铝黄长石
Spanish:Gehlenita

Other Information

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 Gehlenite

Reference List:

- +
Christie, O.H.J. (1961) On sub-solidus relations of silicates; IV. The system åkermanite-sodium-gehlenite and gehlenite-sodium-gehlenite. Norsk Geologisk Tidsskrift: 42: 31-44.

Louisnathan, S.J. (1971), Refinement of the crystal structure of a natural gehlenite, Ca2Al(Al,Si)2O7: Canadian Mineralogist: 10: 822-837.

Hemingway, B.S. and Robie, R.A. (1984) Heat capacity and thermodynamic functions for gehlenite and staurolite: with comments on the Schottky anomaly in the heat capacity of staurolite. American Mineralogist: 69: 307-318.

Bouhifd, M.A., Gruener, G., Mysen, B.O., and Richet, P. (2002) Premelting and calcium mobility in gehlenite (Ca2Al2SiO7) and parawollastonite (CaSiO3). Physics and Chemistry of Minerals: 29: 655-662.

Internet Links for Gehlenite

Search Engines:
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  • External Links:
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  • Look for Gehlenite on Athena Mineralogy
  • Look for Gehlenite on Wikipedia
  • Look for Gehlenite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Gehlenite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Search for Gehlenite on Well-Arranged Molecules
  • The Arkenstone - Fine Minerals
  • Specimens:The following Gehlenite specimens are currently listed for sale on minfind.com.

    Localities for Gehlenite

    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.
    (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.
    Antarctica
     
    • Eastern Antarctica
      • Victoria Land
        • Allan Hills
    Jeffrey N. Grossman, Alan E. Rubin & Glenn J. MacPherson (1988). Allan Hills 85085: an Out-of-the-Ordinary, Enstatite-rich Carbonaceous Chondrite. Abstracts of the Lunar and Planetary Science Conference, vol. 19, p. 433.
    Australia
     
    • South Australia
      • Flinders Ranges
        • North Flinders Ranges
          • Leigh Creek
    Baker, G. (1953): Transactions of the Royal Society of South Australia, 76, 1-20.
    Austria
     
    • Burgenland
      • Oberpullendorf
        • Kobersdorf
          • Pauliberg
    U. Kolitsch, W. Postl, H.-P. Bojar and W. Trattner (2009): Die Mineralvorkommen im Basalt des Pauliberges. In: Autorenkollektiv (Red. M. A. Götzinger und P. Huber) (2009): Die Mineralien des Burgenlandes - Geologie, Mineralogie und mineralische Rohstoffe. – Wissenschaftliche Arbeiten aus dem Burgenland, Band 126, Amt der Burgenländischen Landesregierung, Abteilung 7 - Landesmuseum, Eisenstadt, 83-99.
    • Styria
      • Bad Radkersburg
        • Klöch
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Canada
     
    • Newfoundland and Labrador
      • Labrador
    OWENS, B.E. & KREMSER, P.T. (2010) Åkermanite breakdown to cuspidine-bearing sympectite in a calc-silicate xenolith, Kiglapait intrusion, Labrador, Canada. Canadian Mineralogist 48, 809-819.
    • Québec
      • Montréal
        • Mont Royal
    Dolan (1923)
    China
     
    • Anhui Province
      • Huaibei Prefecture
        • Suixi Co.
          • Sanpu ore field
    Yiming Zhao, Yinan Zhang, Chengsi Bi, Kaijian Tang, and Qingan Sun (1999): Mineral Deposits 18(1), 1-10
    Yiming Zhao, Yinan Zhang, and Chengsi Bi (1999): Ore Geology Reviews 14, 227-249; Yiming Zhao, Yinan Zhang, Chengsi Bi, Kaijian Tang, and Qingan Sun (1999): Mineral Deposits 18(1), 1-10
    Yiming Zhao and Daxin Li (2003): Mineral Deposits 22(4), 345-359
    • Shaanxi Province
      • Hanzhong Prefecture
        • Ningqiang Co.
    Xiyue Wang, Huimin Zhang, Sichao Wang, and Yuezhen Wu (1987): Acta Petrologica et Mineralogica 6(4), 296-306
    • Tibet Autonomous Region
      • Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture)
        • Qusum Co. (Qusong Co.)
    Wenji Bai, Jingsui Yang, Qingsong Fang, Binggan Yan, and Zhongming Zhang (2001): Earth Science Frontiers 8(3), 111-121
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Kutná Hora (Kuttenberg)
          • Poličany
            • Vrchlice river valley
    Pauliš P. Mineralogické lokality okolí Kutné Hory. Kuttna, Kutná Hora 1999. ISBN 80-902719-0-1.
      • Ústí Region
        • Duchcov (Dux)
    Žáček V., Skála R., Chlupáčová M., Dvořák Z. 2005: Ca-Fe3+-rich, Si-undersaturated buchite from Želénky, North-Bohemian Brown Coal Basin, Czech Republic. Eur. J. Mineral., 17, 623-633
    Egypt
     
    • New Valley Governorate
    Methot, R. L. et al., (1975) Mineralogy, petrology and chemistry of the Isna (C3) meteorite. Meteoritics 10 (2): 121-131. (Jun 1975)
    Germany
     
    • Lower Saxony
      • Harz
        • Bad Harzburg
          • Radau valley
    No reference listed
    • Rhineland-Palatinate
      • Eifel
        • Daun
          • Üdersdorf
    Schüller, W., Betz, V., Die Mineralien vom Emmelberg, Lapis 12/1986
        • Laach lake volcanic complex
          • Wassenach
    Hentschel, G., (1987): Die Mineralien der Eifelvulkane, Weise Verlag, München (second edition)
        • Mayen
          • Ettringen
            • Bellerberg volcano
    Hentschel, G. (1987): Die Mineralien der Eifelvulkane, Weise (München), 2. Auflage
              • Southern lava flow
                • Mayener Feld
    Fischer, R.X. Tillmanns, E. (1983): Die Kristallstrukturen von natürlichem Na2Ca2Si3O9 vom Mt. Shaheru (Zaire) und aus dem Mayener Feld (Eifel), N. Jb. Mineral. Mh. 49-59
              • Western lava flow
    Hentschel, G. (1961): Seltene Mineralneubildungen in einem Kalksteineinschluß der Lava des Ettringer Bellerberges, Fortschritte Mineralogie, Vol. 39, 345
        • Mendig
          • Niedermendig
    Hentschel, G., Die Mineralien der Eifelvulkane, Weise Verlag München, 1983
        • Polch
          • Ochtendung
    Blass, G., Graf , HW., Die Wannenköpfe bei Ochtendung in der Vulkaneifel und ihre Mineralien, MW 6/1999
    Greece
     
    • Attikí Prefecture (Attica; Attika)
      • Lavrion District (Laurion; Laurium)
    Schnorrer-Köhler, G., Standfuss, L. & Standfuss, K. (1991): Neue Funde aus den antiken Schlacken von Lavrion, Griechenland. Lapis, 16 (6), 21-23; 58.
    Hungary
     
    • Pest Co.
      • Pilis Mtns
        • Pomáz
    Fehér, B. (2000): Gehlenitic xenoliths from the Klanác Hill, Pomáz, Visegrád Mountains, Hungary. Acta Mineralogica-Petrographica (Szeged), XLI, Suppl., 39.
    India
     
    • Madhya Pradesh
    Brearley, A. J. & Jones, R. H. (1998). Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998)
    Iran
     
    • East Azarbaijan Province (East Azerbaijan Province)
      • Ahar County
        • Ahar
    Mollai, H., Sharma, R., and Pe-Piper, G. (2009): Ore Geology Reviews 35, 401-414.
    Israel
     
    • Negev
    Sharygin, V.V., Sokol, E.V. & Vapnik, Ye. (2008): Minerals of the pseudobinary perovskite-brownmillerite series from combustion metamorphic larnite rocks of the Hatrurim Formation (Israel). Russian Geology and Geophysics 49, 709-726.
    Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
    • Southern District (HaDarom District)
    Tony Nickischer
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
    [Lapis 1994:5 p.13-23,58]
            • Pollena - Trocchia area
    Russo, M. & Punzo, I. (2004): I minerali del Somma-Vesuvio. AMI, Ed., Cremona, Italy, 320 pp.
    • Emilia-Romagna
      • Ferrara Province
    Brian Mason (1971) The Carbonaceous Chondrites — A Selective Review. Meteoritics 6, #2, 59-70.
    M. K. Weisberg & Marty Prinz (1990). Refractory-rich Inclusions in CR2 (Renazzo-type) Chondrites. Abstracts of the Lunar and Planetary Science Conference 21, p. 1315.
    • Latium
      • Rome Province
        • Bracciano Lake
    Schingaro, E. et al. (2001): Crystal chemistry of Kimzeyite from Anguillara, Mts. Sabatini, Italy, European Journal of Mineralogy, Vol. 13, 749-759
        • Rome
    Gresta, S., Duronio, F., Mancinella D. (2002): Geositi e Sistema delle Aree Protette del Lazio: idee per la geoconservazione. Il Cercapietre. Not. del Gruppo Mineralogico Romano, 1-2: 48-55
          • Valleranello
        • Sacrofano Caldera
          • Magliano Romano
    Stoppani, F.S. & Curti, E. (1982): I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
          • Sacrofano
      • Viterbo Province
        • Montalto di Castro
          • Pietra Massa Locality
    Passaglia, E. & Turconi, B. (1982): Silicati ed altri minerali di Montalto di Castro - VT. Rivista Mineralogica Italiana, 4/1982, 97-110.
    Lapis 28(12), 19-28 (2003)
    • Piedmont
      • Torino Province
        • Canavese District
          • Chiusella Valley
            • Traversella
    Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
    • Sardinia
      • Medio Campidano Province
        • Arbus
    Preite, D., & Zuanel, A. (2007). Montevecchio: storia, miniere e minerali. Rivista Mineralogica Italiana, 31 (4), 230-246.
    • Trentino-Alto Adige
      • Trento Province
        • Fassa Valley
    J. N. Fuchs (1815) J. Phys. Chem. (Schweigger), 15, 377
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
        • Fiemme Valley
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    • Tuscany
      • Grosseto Province
        • Pitigliano
    Liotti L., 1991. I minerali dei vulcani laziali a Pitigliano (Grosseto). Riv. Mineral. Ital., 15: 121-139.
    • Umbria
      • Perugia Province
        • Spoleto
    Stoppa F., Sharygin V.V., 2009. Melilitolite intrusion and pelite digestion by high temperature kamafugitic magma at Colle Fabbri, Spoleto, Italy. Lithos, 112, 306-320.
    Japan
     
    • Honshu Island
      • Chubu Region
        • Gifu Prefecture
          • Ibigawa-cho
            • Kasuga-mura
              • Kasuga mine
    Excalibur Mineral Co. specimens
      • Chugoku Region
        • Hiroshima prefecture
          • Hiba-gun
    Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
        • Okayama Prefecture
          • Takahashi City
            • Bicchu-cho (Bitchu-cho)
              • Fuka
    Mineralogical Record: 27: 304.; Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71; I. Kusachi, Y. Takechi, C. Henmi and S. Kobayashi (1998) Parasibirskite, a New Mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine 62:521-525.; Henmi, C., Kusachi, I., Kawahara, A., & Henmi, K. (1978). 7T wollastonite from Fuka, Okayama Prefecture. Mineralogical Journal, 9(3), 169-181.; Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18· 5H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358.
      • Tohoku Region
        • Fukushima Prefecture
    Matsuyama, F. (2001)
        • Iwate Prefecture
          • Esashi City
    Dr. Matsuo Nambu collection (curated at Geological Survey of Japan); Bunno, M., Shimazaki, H., & Sato, K. (1982). Occurrence and genesis of bicchulite and tilleyite skarns at the Sakae adit, the Akagane mine, Iwate Prefecture. Mining Geology, 32, 141-150
          • Kamaishi City
    Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
    Kazakhstan
     
    • Pavlodar Province (Pavlodar Oblysy; Pavlodarskaya Oblast')
    Ivanova, M. A., Krot, A. N., Nagashima, K. & MacPherson, G. J. (2012). Meteoritics & Planetary Science 47 (12): 2107-2127. (Dec 2012)
    Mexico
     
    • Coahuila
      • Mun. de Sierra Mojada
        • Sierra Mojada
    Mineralogical Magazine 1964 33 : 841-852
    • Durango
      • Mun. de Cuencamé
        • Velardeña District
          • Velardeña
    Wright F E (1908) On three contact minerals from Valardeña, Durango, Mexico. (Gehlenite, spurrite and hillebrandite). American Journal of Science 176, 545-554
    Panczner (1987): 206.
    Morocco
     
    • Meknès-Tafilalet Region
      • Er Rachidia Province (Errachidia Province)
        • Erfoud (Erfud)
          • Rissani
    Caltech, photomicrograph by Chi Ma.
    Fintor, K., Walter, H. & Nagy, Sz. (2013) Petrographic and Micro-Raman Analysis of Chondrules and (Ca, Al)-Rich Inclusions of NWA 2086 CV3 Type Carbonaceous Chondrite: Lunar and Planetary Science Conference XLIV. LPI Contribution No. 1719, p.1152. (March 2013)
    New Zealand
     
    • North Island
      • Northland
        • Kaipara
    Mason, B. (1957): Larnite, scawtite, and hydrogrossular from Tokatoka, New Zealand. American Mineralogist 42, 379-392.
    Outer Space
     
    Gornitz, V. (2007) Hot & cold origins: the mineralogy of a comet. Mineral News, 23, #1, 1-4.
    Palestine
     
    • West Bank
      • Hatrurim Formation
    Galuskina, I.O., Vapnik Ye., Lazic B., Armbruster T., Murashko M. and Galuskin E. Harmunite CaFe2O4: A new mineral from the Jabel Harmun, West Bank, Palestinian Autonomy, Israel. American Mineralogist, 99, 965–975.
    Seryotkin Y.V., Sokol E.V. & Kokh S.N. 2012: Natural pseudowollastonite: Crystal structure, associated minerals, and geological context. Lithos, vol. 134-135, pp. 75-90; Seryotkin, Yu.V., Sokol, E.V., Kokh, S.N. (2012): Natural pseudowollastonite: Crystal structure, associated minerals, and geological context. Lithos, 134–135, 75-90.
    Réunion Island
     
    • Piton des Neiges
      • Cirque de Cilaos
        • Bras de Cilaos
    Boisson, J.-M. & Leconte, J. (2014): Analyses 2012-2013 MNHN-MICROMONTEURS. La revue de Micromonteurs, 21.
    Romania
     
    • Brașov Co.
      • Racoş Commune
    Szakáll, S., Kristály, F., 2010. Mineralogy of Székelyland, Eastern Transylvania, Romania. Sfântu Gheorghe-Miercurea Ciuc-Târgu Mureş. 2010.
    • Caraş-Severin Co.
      • Banat Mts
        • Oraviţa-Ciclova Cu-Mo-(W) ore field
    Ştefan Marincea, Delia-Georgeta Dumitraş, Cristina Ghineţ, André-Mathieu Fransolet, Frédéric Hatert, and Mélanie Rondeaux (2011) GEHLENITE FROM THREE OCCURRENCES OF HIGH-TEMPERATURE SKARNS, ROMANIA: NEW MINERALOGICAL DATA. Canadian Mineralogist, 49:1001-1014.
    Marincea, S., Dumitraş. D-G., Ghinet, C, Fransolet, A.-M., Hatert, F. & Rondeaux, M. (2011): Gehlenite from three occurrences of high-temperature skarns, Romania: new mineralogical data. Canadian Mineralogist. 49, 1001-1014
    • Harghita Co.
      • Odorheiu Secuiesc (Székelyudvarhely; Oderhellen)
        • Racoş (Racoşu de Jos)
    Szakáll, S., Almási, E., Köllı, A., Sajó, I., Vezzalini, G. (2006): New data about the minerals of the copper ore deposit at Balan (East Carpathians) and of limestone xenolithes from basalt at Racosu de Jos (Persani Mts.), Romania. Acta Mineral.-Petrogr., Abstr. Ser. 5, p. 112. [http://www.mineral.hermuz.hu/acta_05/pdf/szakalls1.pdf]; Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
    • Hunedoara Co.
      • Hunedoara
    Canadian Mineralogist: 39: 1435-1453.
    Marincea, S., Dumitraş. D-G., Ghinet, C, Fransolet, A.-M., Hatert, F. & Rondeaux, M. (2011): Gehlenite from three occurrences of high-temperature skarns, Romania: new mineralogical data. Canadian Mineralogist. 49, 1001-1014
    Martins da Pedra collection
    Russia
     
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Narin-Kunta
    P.M. Kartashov data; Armbruster, T., Lazic, B., Gfeller, F., Galuskin, E.V., Galuskina, I.O., Savelyeva, V.B., Zadov, A.E., Pertsev, N.N., Dzierżanowski, P. (2011): Chlorine content and crystal chemistry of dellaite from the Birkhin gabbro massif, Eastern Siberia, Russia. Mineralogical Magazine, 75, 379-394.
    Sweden
     
    • Medelpad
      • Timrå
    Sandström, F., Binett, T., Wiklund, C. & Vikström, J. (2010): Alnöområdets geologi och mineralogi. Litiofilen. 27 (2) :14-42
    Uganda
     
    • Kabarole District
    Barker, D.S. and Nixon, P.H. (1989) High-Ca, low-alkali carbonatite volcanism at Fort Portal, Uganda. Contributions to Minralogy and Petrology.: 103: 166-177.
    UK
     
    • Northern Ireland
      • Co. Antrim
        • Glenoe
    P. A. Sabine, M. T. Styles and B. R. Young (1985) The Nature and Paragenesis of Natural Bredigite and Associated Minerals from Carneal and Scawt Hill, Co. Antrim. Mineralogical Magazine 49:663-670.
        • Larne
    American Mineralogist: 33: 786
    • Scotland
      • North West Highlands (Argyllshire)
        • Ardnamurchan
    American Mineralogist 35:1080
      • North West Highlands (Inverness-shire)
        • Isle of Muck
    Tilley, C.E. (1947) The gabbro-limestone contact zone of Camas Mor, Muck, Inverness-shire. Comptes Rendus de la Société geologique de Finlande, No. 140, 97–105.
    USA
     
    • California
      • Inyo Co.
        • Darwin Hills
          • Darwin District
            • Darwin
    Am Min (1962) 47:1003-1005
        • Panamint Mts (Panamint Range)
          • Cottonwood Mts
            • Ubehebe District
              • Lost Burro Spring
    Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 259.
      • Riverside Co.
        • Crestmore
          • Crestmore quarries
            • Sky Blue Hill
    Larsen, Esper Signius & William F. Foshag (1921), Merwinite, a new calcium magnesium orthosilicate from Crestmore, California: American Mineralogist:6: 144; Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmorre, California. American Mineralogist: 26: 352-381; Woodford, A.O. (1943), Crestmore minerals: California Division Mines Report 39: 358; Burnham, C. W. (1959), Contact metamorphism of magnesian limestones at Crestmore, California Geological Society of America Bulletin: 70: 880; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 494.
    Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 352-381.
    Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmorre, California. American Mineralogist: 26: 352-381.
    Shannon, Earl Victor (1922), Velarsenite from a new locality in Tulare County, California: US National Museum Proceedings: 60, art. 22, 4 pp.:
    • Colorado
      • Gunnison Co.
        • White Earth District (Powderhorn District)
    • Kansas
      • Decatur Co.
    Keil, K., G. I. Huss & H. B. Wiik (1969). The Leoville, Kansas, Meteorite: A Polymict Breccia of Carbonaceous Chondrites and Achondrite. Meteorite Researchedited by Peter M. Millman. Astrophysics and Space Science Library: Astrophysics and Space Science Library, Volume 12, 1969, p 217.
    • Maine
      • Oxford Co.
        • Stoneham
    Bastin, Edson Sunderland (1911) Geology of the pegmatites and associated rocks of Maine, including feldspar, quartz, mica, and gem deposits. USGS Bulletin 445.
    • New Mexico
      • Luna Co.
        • Camel Mountain-Eagle Nest District
    NMBGMR Open-file Report OF-459
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    Northrop, Minerals of New Mexico, 3rd rev. ed., 1996
    • Texas
      • Culberson Co.
        • Apache Peak area
    Rocks & Minerals: 66(3): 196-224.
      • Uvalde Co.
    • Virginia
      • Highland Co.
    Minerals of Virginia, 1990 by R. V. Dietrich
    • Wyoming
      • Campbell Co.
        • Reno Junction
    American Mineralogist, Volume 73, pages 1440-1448, 1988
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