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Beryllite

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Formula:
Be3(SiO4)(OH)2 · H2O
Colour:
White
Lustre:
Silky
Hardness:
1
Specific Gravity:
2.196
Crystal System:
Orthorhombic
Name:
For the chemical composition.
Hydrated counterpart of sphaerobertrandite; chemically similar to bertrandite.


Hide all sections | Show all sections

Classification of BerylliteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1954
9.AE.05

9 : SILICATES (Germanates)
A : Nesosilicates
E : Nesosilicates with additional anions (O,OH,F,H2O); cations in tetrahedral [4] coordination
52.1.1.1

52 : NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
1 : Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] coordination
14.3.3

14 : Silicates not Containing Aluminum
3 : Silicates of Be

Pronounciation of BerylliteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of BerylliteHide

Silky
Transparency:
Transparent
Colour:
White
Hardness:
Density:
2.196 g/cm3 (Measured)    

Optical Data of BerylliteHide

Type:
Biaxial (-)
RI values:
nα = 1.541 nβ = 1.553 nγ = 1.560
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong

Chemical Properties of BerylliteHide

Formula:
Be3(SiO4)(OH)2 · H2O
IMA Formula:
Be3SiO4(OH)2 · H2O
Common Impurities:
Ti,Al,Fe,Mg,Ca,Na

Crystallography of BerylliteHide

Crystal System:
Orthorhombic
Comment:
Orthorhombic or monoclinic, space group unknown.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.01 (100)
2.34 (100)
3.64 (90)
1.351 (80)
3.39 (70)
3.19 (70)
2.90 (70)

Type Occurrence of BerylliteHide

General Appearance of Type Material:
fine spherulites (to 3 mm); drusy segregations; fibrous crusts; powdery masses and coatings
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia (catalogue no. 57361)
Geological Setting of Type Material:
zoned pegmatite cutting arfvedsonite-bearing nepheline syenite
Associated Minerals at Type Locality:

Other Language Names for BerylliteHide

German:Beryllit
Simplified Chinese:水硅铍石
Spanish:Beryllita
Traditional Chinese:水矽鈹石

Varieties of BerylliteHide

MetaberylliteFormerly considered a lower hydrate of Beryllite.

Originally described from Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.

Common AssociatesHide

AnalcimeNa(AlSi2O6) · H2O
ChkaloviteNa2BeSi2O6
EpididymiteNa2Be2Si6O15 · H2O
SørenseniteNa4SnBe2Si6O16(OH)4
TugtupiteNa4BeAlSi4O12Cl
Associated Minerals Based on Photo Data:
Epididymite9 photos of Beryllite associated with Epididymite on mindat.org.
Cryptomelane4 photos of Beryllite associated with Cryptomelane on mindat.org.
Chkalovite3 photos of Beryllite associated with Chkalovite on mindat.org.
Aegirine3 photos of Beryllite associated with Aegirine on mindat.org.
Polylithionite2 photos of Beryllite associated with Polylithionite on mindat.org.
Albite2 photos of Beryllite associated with Albite on mindat.org.
Tugtupite2 photos of Beryllite associated with Tugtupite on mindat.org.
Analcime2 photos of Beryllite associated with Analcime on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.AE.10EuclaseBeAl(SiO4)(OH)Mon. 2/m : P21/b
9.AE.15SverigeiteNaMnMgSnBe2(SiO4)3(OH)Orth. mmm (2/m 2/m 2/m) : Imma
9.AE.20HodgkinsoniteMn2+Zn2(SiO4)(OH)2Mon.
9.AE.25GerstmanniteMnMgZn(SiO4)(OH)2Orth.
9.AE.30ClinohedriteCaZn(SiO4) · H2OMon. m : Bb
9.AE.35StringhamiteCaCu(SiO4) · H2OMon.
9.AE.40Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb5+2(SiO4)2O20Mon. 2/m : B2/m
9.AE.45YeatmaniteZn6Mn2+9Sb5+2(SiO4)4O12Tric.
9.AE.50SphaerobertranditeBe3(SiO4)(OH)2Mon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.3.1PhenakiteBe2SiO4Trig. 3 : R3
14.3.2BertranditeBe4(Si2O7)(OH)2Orth. mm2 : Cmc21
14.3.4LiberiteLi2BeSiO4Mon. m : Pm
14.3.5ChkaloviteNa2BeSi2O6Orth. mm2 : Fdd2
14.3.6EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
14.3.7EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
14.3.8GugiaiteCa2Be(Si2O7)Tet.
14.3.9Jeffreyite(Ca,Na)2(Be,Al)(Si2O7,HSi2O7)Orth.
14.3.10Semenovite-(Ce)Na8Ca2FeBe6Ce2Si14O40(OH)4F4Orth. mmm (2/m 2/m 2/m)
14.3.11BaryliteBe2Ba(Si2O7)Orth.
14.3.12Hingganite-(Ce)(Ce,REE)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
14.3.13Hingganite-(Yb)(Yb,Y,REE)2□Be2[SiO4]2(OH)2
14.3.14Hingganite-(Y)(Y,REE,Ca)2(□,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
14.3.15Minasgeraisite-(Y)CaBe2Y2Si2O10Mon. 2/m : P21/b
14.3.16SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
14.3.17TrimeriteCaMn2+2Be3(SiO4)3Mon. 2/m : P21/m
14.3.18ChiavenniteCaMnBe2Si5O13(OH)2 · 2H2OMon. 2/m : P21/b
14.3.19Tvedalite(Ca,Mn)4Be3Si6O17(OH)4 · 3H2OOrth.
14.3.20HarstigiteCa6(Mn,Mg)Be4Si6(O,OH)24Orth.
14.3.21SverigeiteNaMnMgSnBe2(SiO4)3(OH)Orth. mmm (2/m 2/m 2/m) : Imma
14.3.22Joesmithite{Pb}{Ca2}{Mg3Fe3+2}(Be2Si6O22)(OH)2Mon.
14.3.23Gadolinite-(Y)Y2Fe2+Be2Si2O10Mon. 2/m : P21/b
14.3.24Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10Mon. 2/m
14.3.25Calciogadolinite-(Y)(YCa)2Fe3+Be2[SiO4]2O2

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.

References for BerylliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Doklady Akademiia Nauk, SSSR (USSR) (in Russian) (1954): 99: 451.
American Mineralogist (1955): 40: 787.
Andersen, S. (1967) On beryllite and bertrandite from the Ilimaussaq alkaline intrusion, South Greenland. Medd. Gronland, 181(4), 11-26.
Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)

Internet Links for BerylliteHide

Localities for BerylliteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Greenland
 
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
Petersen, O., Giester, G., Brandstätter, F., Niedermayr, G. (2002): Nabesite, a new mineral species from the Ilimaussaq alkaline complex, Canadian Mineralogist, Vol. 40, 173-181
Petersen, O.V., Giester, G., Brandstätter, F., Niedermayr, G. (2002): Nabesite, a new mineral species from the Ilimaussaq alkaline complex. Canadian Mineralogist. 40, 173-181
        • Taseq area
www.handbookofmineralogy.org/pdfs/beryllite.pdf
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
www.koeln.netsurf.de/~w.steffens/khib.htm
E. I. Semenov, 1972. [Mira..~OBO3epcK. II~e:xoqH. Macc., I/I3A. HayKa]; abstr. Zap. 102, 75
Yakovenchik, V.N., Ivaniuk, G.Yu., Pakhomovsky, Ya.A., Selivanova, E.A., Men'shikov, Yu.P., Korchak, J.A., Krivovichev, S.V., Spiridonova, D.V., Zalkind, O.A. (2010): Punkaruaivite, Li{Ti2(OH)2[Si4O11(OH)]}•H2O, a new mineral species from hydrothermalites of Khibiny and Lovozero alkaline massifs (Kola Peninsula, Russia). Canadian Mineralogist, 48, 41-50.
Arzamastsev, A., Yakovenchuk, V., Pakhomovsky, Y., & Ivanyuk, G. (2008). The Khibina and Lovozero alkaline massifs: Geology and unique mineralization. In Guidbook for 33rd International Geological Congress Excursion (No. 47, p. 58).
I. Pekov (1998) Minerals First Discovered on the Territory of the former Soviey Union; Pekov, I. V., Chukanov, N. V., Yamnova, N. A., Zadov, A. E., & Tarassoff, P. (2007). Gjerdingenite-Na and gjerdingenite-Ca, two new mineral species of the labuntsovite group. The Canadian Mineralogist, 45(3), 529-539
Mineral and/or Locality  
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