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Beryl Group

A group of related mineral species
This page kindly sponsored by Mark Kucera
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About Beryl GroupHide

Formula:
(M3+,M2+)4[Be6Si12O36-z(OH)z] · (H2O)yAx
where A = mostly Na and x = likely not larger than 1
Note: some authors also include indialite in the beryl group.

Structurally and - as exemplified by April 2023 approval of a link in the form of beryllocordierite-Na and sachanbińskiite (formerly beryllosachanbińskiite-Na) - related to cordierite (and indialite). This suggests a possible future merging of the two "families" of compounds.


Unique IdentifiersHide

Mindat ID:
40374
Long-form identifier:
mindat:1:1:40374:4

IMA Classification of Beryl GroupHide

Pronunciation of Beryl GroupHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Chemistry of Beryl GroupHide

Mindat Formula:
(M3+,M2+)4[Be6Si12O36-z(OH)z] · (H2O)yAx

where A = mostly Na and x = likely not larger than 1

Chemical AnalysisHide

Oxide wt%:
 12345678
SiO264.56 %66.6 %67.7 %63.66 %63.94 %66.00 %58.00 %76.48 %
Al2O317.31 %17.8 %15.57 %20.89 %20.98 %19.34 %0.8 0 %22.36 %
Fe2O30.07 %0.29 %0.83 %2.04 %2.04 %5.70 %
FeO0.66 %0.86 %0.79 %
BeO11.64 %13.6 %13.16 %12.49 %10.08 %10.75 %14.50 %
CaO0.25 %0.26 %0.12 %0.01 %0.06 %
MgO0.04 %0.07 %0.11 %0.10 %
Na2O1.66 %0.30 %0.45 %0.24 %0.32 %0.04 %1.60 %
K2O0.08 %0.06 %0.05 %0.09 %0.03 %0.13 %
P2O50.01 %0.01 %
Li2O0.63 %0.09 %0.24 %
Cs2O0.89 %0.03 %2.93 %
Rb2O0.09 %0.06 %0.25 %
Fe2O3(t)1.10 %
MnO0.01 %0.02 %0.02 %1.43 %
H2O+0.74 %1.15 %0.59 %
H2O-0.38 %0.47 %
TiO20.03 %
Sc2O314.50 %
H2O1.10 %
V2O30.07 %
Cr2O30.04 %
BaO0.15 %
CuO0.01 %
Total:97.89 %99.73 %98.51 %99.3 %99.09 %98.84 %101.28 %99.96 %
Empirical formulas:
Sample IDEmpirical Formula
9Be3.00(Sc1.43Fe2+0.28Mg0.20Al0.05Fe3+0.03Mn0.01)Σ2.01Si6.00O18*[(Na0.46Cs0.01)Σ0.47(H2O)]
10Be2.99(Sc1.39Mg0.37Fe3+0.10Fe2+0.09Al0.06Mn0.01)Σ2.02Si5.99O18*[Na0.47(H2O)]
4(Be2.77Al0.12Fe0.05) ?2.94Al2.00(Si5.86Al0.14)? 6.00O18Na0.04K0.01
5(Be2.27Al0.23Fe0.43) ?2.93Al2.00Si6.00O18Na0.05K0.01
6(Be2.39Al0.11Fe0.14 Si0.11) ?2.75Al2.00Si6.00O18Na0.01
7Be3.1(Sc1.24Fe0.42Mn0.12Al0.10Mg0.02)1.9(Na0.30Cs0.12Li0.05Rb0.02K0.01)0.5(Si5.7Be0.3)6O18* 0.36H2O
Sample references:
IDLocalityReferenceNotes
1Marlagalla-Allapatna, Mandya District, Karnataka, IndiaChemical analysis of a white alkali-rich beryl from a pegmatite.
2Kawadgaon-Challanpara pegmatite field, Dantewada District, Chhattisgarh, IndiaAnalysis of beryl from granite pegmatite. EMPA analysis
3Marlagalla-Allapatna, Mandya District, Karnataka, IndiaChemical analysis of a light green beryl from a pegmatite.
4Birch Portage pegmatites, Jan Lake, Saskatchewan, CanadaYellow beryl: Analysed by a combination of methods: X-ray fluorescence (major elements) Flame photometry (alkalis) Wet chemical analysis (BeO, separations) X-ray diffraction (structural parameters)
5  "  "Green beryl: Analysed by a combination of methods: X-ray fluorescence (major elements) Flame photometry (alkalis) Wet chemical analysis (BeO, separations) X-ray diffraction (structural parameters)
6  "  "Blue beryl Analysed by a combination of methods: X-ray fluorescence (major elements) Flame photometry (alkalis) Wet chemical analysis (BeO, separations) X-ray diffraction (structural parameters)
7Heftetjern pegmatite, Tørdal, Drangedal, Telemark, NorwayElectron-microprobe analyses of three grains and atomic-absorption analyses of a bulk sample (average)
8NigeriaX-ray fluorescence spectroscopy. Reference did not determine Be.
9Bugaboo Castles, Golden Mining Division, British Columbia, Canada
10Rose Quartz Pit, Quadeville area, Lyndoch Township, Brudenell-Lyndoch-and-Raglan, Renfrew County, Ontario, Canada

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020677Pezzottaite-(Cs)Gatta D G, Adamo I, Meven M, Lambruschi E (2012) A single-crystal neutron and X-ray diffraction of pezzottaite Physics and Chemistry of Minerals 39 829-8402012Sakavalana pegmatite, Ambatovita, Madagascar0298
0012414BerylYakubivich O V, Pekov I V, Steele I M, Massa W, Chukanov N V (2009) Alkali metals in beryl and their role in the formation of derivative structural motifs: Comparative crystal chemistry of vorobyevite and pezzottaite Crystallography Reports 54 399-4122009Lipovka pegmatite field, Rezh District, Central Urals, Urals Region, Russia0293
0019166BerylAdamo I, Gatta G D, Rotiroti N, Diella V, Pavese A (2008) Gemmological investigation of a synthetic blue beryl: a multi-methodological study Mineralogical Magazine 72 799-8082008synthetic0293
0019165BerylAdamo I, Gatta G D, Rotiroti N, Diella V, Pavese A (2008) Gemmological investigation of a synthetic blue beryl: a multi-methodological study Mineralogical Magazine 72 799-8082008synthetic0293
0019164BerylAdamo I, Gatta G D, Rotiroti N, Diella V, Pavese A (2008) Gemmological investigation of a synthetic blue beryl: a multi-methodological study Mineralogical Magazine 72 799-8082008synthetic0293
0003994BerylGatta G D, Nestola F, Bromiley G D, Mattauch S (2006) The real topological configuration of the extra-framework content in alkali-poor beryl: a multi-methodological study American Mineralogist 91 29-342006Shengus, Haramosh Mts, Gilgit, Northern Areas, Pakistan0293
0005700BazziteDemartin F, Gramaccioli C M, Pilati T (2000) Structure refinement of bazzite from pegmatitic and miarolitic occurrences The Canadian Mineralogist 38 1419-14242000Tordal, Norway0293
0005699BazziteDemartin F, Gramaccioli C M, Pilati T (2000) Structure refinement of bazzite from pegmatitic and miarolitic occurrences The Canadian Mineralogist 38 1419-14242000Baveno granite, Piemonte, Italy0293
0005261BerylSherriff B L, Grundy H D, Hartman J S, Hawthorne F C, Cerny P (1991) The incorporation of alkalis in beryl: multi-nuclear MAS NMR and crystal-structure study The Canadian Mineralogist 29 271-2851991Bernic Lake, Manitoba, Canada0293
0005260BerylSherriff B L, Grundy H D, Hartman J S, Hawthorne F C, Cerny P (1991) The incorporation of alkalis in beryl: multi-nuclear MAS NMR and crystal-structure study The Canadian Mineralogist 29 271-2851991Bernic Lake, Manitoba, Canada0293
0005259BerylSherriff B L, Grundy H D, Hartman J S, Hawthorne F C, Cerny P (1991) The incorporation of alkalis in beryl: multi-nuclear MAS NMR and crystal-structure study The Canadian Mineralogist 29 271-2851991Bernic Lake, Manitoba, Canada0293
0005258BerylSherriff B L, Grundy H D, Hartman J S, Hawthorne F C, Cerny P (1991) The incorporation of alkalis in beryl: multi-nuclear MAS NMR and crystal-structure study The Canadian Mineralogist 29 271-2851991SHEE-1 pegmatite dike, eastern end of Shatford Lake, southeastern Manitoba, Canada0293
0001186BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988synthetic, flux-fusion0293
0001185BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988synthetic, flux-fusion0293
0001184BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Salinas mine, Minas Gerais, Brazil0293
0001183BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Mawi mine, Nuristan, Afghanistan0293
0001182BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Salinas mine, Minas Gerais, Brazil0293
0001181BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Fort Victoria field, Zimbabwe0293
0001180BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Ural Mountains, Russia0293
0001179BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Karoi, Miami district, Zimbabwe0293
0001178BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Violet Claims, Wah Wah Mountains, Beaver County, Utah, USA0293
0001177BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Violet Claims, Wah Wah Mountains, Beaver County, Utah, USA0293
0001176BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Morrua, Zambesia0293
0001175BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Mohave county, Arizona, USA0293
0001174BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Calcaferro mine, Pietrasanta, Tuscany, Italy0293
0001173BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Calcaferro mine, Pietrasanta, Tuscany, Italy0293
0001172BerylAurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F (1988) Reappraisal of the crystal chemistry of beryl American Mineralogist 73 826-8371988Mount Cervandone, Val d'Ossola, Piedmont, Italy0293
0019469BerylGibbs G V, Breck D W, Meagher E P (1968) Structural refinement of hydrous and anhydrous synthetic beryl, Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18 Lithos 1 275-2851968synthetic0293
0019468BerylGibbs G V, Breck D W, Meagher E P (1968) Structural refinement of hydrous and anhydrous synthetic beryl, Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18 Lithos 1 275-2851968synthetic0293
0019467BerylGibbs G V, Breck D W, Meagher E P (1968) Structural refinement of hydrous and anhydrous synthetic beryl, Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18 Lithos 1 275-2851968synthetic0293
0019466BerylGibbs G V, Breck D W, Meagher E P (1968) Structural refinement of hydrous and anhydrous synthetic beryl, Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18 Lithos 1 275-2851968synthetic0293
0012413Pezzottaite-(Cs)Yakubivich O V, Pekov I V, Steele I M, Massa W, Chukanov N V (2009) Alkali metals in beryl and their role in the formation of derivative structural motifs: Comparative crystal chemistry of vorobyevite and pezzottaite Crystallography Reports 54 399-4122009Sakavalana granitic pegmatite, Antsirabe, Fianarantsoa Province, Madagascar0100
0020678Pezzottaite-(Cs)Gatta D G, Adamo I, Meven M, Lambruschi E (2012) A single-crystal neutron and X-ray diffraction of pezzottaite Physics and Chemistry of Minerals 39 829-8402012Sakavalana pegmatite, Ambatovita, Madagascar02.3
0001606BerylArtioli G, Rinaldi R, Stahl K, Zanazzi P F (1993) Structure refinements of beryl by single-crystal neutron and X-ray diffraction American Mineralogist 78 762-76819930295
0001605BerylArtioli G, Rinaldi R, Stahl K, Zanazzi P F (1993) Structure refinements of beryl by single-crystal neutron and X-ray diffraction American Mineralogist 78 762-76819930295
0001604BerylArtioli G, Rinaldi R, Stahl K, Zanazzi P F (1993) Structure refinements of beryl by single-crystal neutron and X-ray diffraction American Mineralogist 78 762-76819930295
0001603BerylArtioli G, Rinaldi R, Stahl K, Zanazzi P F (1993) Structure refinements of beryl by single-crystal neutron and X-ray diffraction American Mineralogist 78 762-76819930295
0006751StoppaniiteFerraris G, Prencipe M, Rossi P (1998) Stoppaniite, a new member of the beryl group: crystal structure and crystal-chemical implications European Journal of Mineralogy 10 491-49619980293
0001043BerylHazen R M, Au A Y, Finger L W (1986) High-pressure crystal chemistry of beryl (Be3Al2Si6O18) and euclase (BeAlSiO4OH) American Mineralogist 71 977-98419860293
0001042BerylHazen R M, Au A Y, Finger L W (1986) High-pressure crystal chemistry of beryl (Be3Al2Si6O18) and euclase (BeAlSiO4OH) American Mineralogist 71 977-98419860293
0001041BerylHazen R M, Au A Y, Finger L W (1986) High-pressure crystal chemistry of beryl (Be3Al2Si6O18) and euclase (BeAlSiO4OH) American Mineralogist 71 977-98419860293
0001040BerylHazen R M, Au A Y, Finger L W (1986) High-pressure crystal chemistry of beryl (Be3Al2Si6O18) and euclase (BeAlSiO4OH) American Mineralogist 71 977-98419860293
0001014BerylBrown G E, Mills B A (1986) High-temperature structure and crystal chemistry of hydrous alkali-rich beryl from the Harding pegmatite, Taos County, New Mexico American Mineralogist 71 547-55619860293
0001013BerylBrown G E, Mills B A (1986) High-temperature structure and crystal chemistry of hydrous alkali-rich beryl from the Harding pegmatite, Taos County, New Mexico American Mineralogist 71 547-55619860293
0001012BerylBrown G E, Mills B A (1986) High-temperature structure and crystal chemistry of hydrous alkali-rich beryl from the Harding pegmatite, Taos County, New Mexico American Mineralogist 71 547-55619860293
0001011BerylBrown G E, Mills B A (1986) High-temperature structure and crystal chemistry of hydrous alkali-rich beryl from the Harding pegmatite, Taos County, New Mexico O2x has been corrected American Mineralogist 71 547-55619860293
0005142BerylHawthorne F C, Cerny P (1977) The alkali-metal positions in Cs-Li beryl The Canadian Mineralogist 15 414-42119770293
0011165BerylWyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Hexagonal closest packed, hcp, structure Crystal Structures 1 7-8319630293
0017446BerylBragg W (1926) The structure of beryl, Be3Al2Si6O18 _cod_database_code 1010541 Proceedings of the Royal Society of London A111 691-71419260293
0001602BerylArtioli G, Rinaldi R, Stahl K, Zanazzi P F (1993) Structure refinements of beryl by single-crystal neutron and X-ray diffraction American Mineralogist 78 762-7681993030
CIF Raw Data - click here to close

Relationship of Beryl Group to other SpeciesHide

Other Members of Beryl Supergroup:
Beryl Group Members:
Bazzite Be3Sc2(Si6O18)Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Beryl Be3Al2(Si6O18)Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Johnkoivulaite-(Cs) Cs[Be2B]Mg2Si6O18Hex. 6/mmm(6/m2/m2/m) : P6/mcc
Pezzottaite-(Cs) Cs(Be2Li)Al2(Si6O18)Trig. 3 : R3
Stoppaniite Be3Fe3+2(Si6O18) · H2OHex. 6/mmm(6/m2/m2/m) : P6/mcc
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Beryl Group in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for Beryl GroupHide

References for Beryl GroupHide

Localities for Beryl GroupHide

Showing 7,219 localities.

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.
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