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Bromellite

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Formula:
BeO
System:HexagonalColour:White to creamy white
Hardness:9
Name:For Magnus von Bromell (1679-1731), Swedish physician and mineralogist.
This page provides mineralogical data about Bromellite.

Classification of Bromellite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/A.03-10
Nickel-Strunz 10th (pending) edition ID:4.AB.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
A : Metal: Oxygen = 2:1 and 1:1
B : M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only
Dana 8th edition ID:4.2.2.2

4 : SIMPLE OXIDES
2 : AX
Hey's CIM Ref.:7.4.1

7 : Oxides and Hydroxides
4 : Oxides of Be, Mg and the alkaline earths
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Type Occurrence of Bromellite

Type Locality:Långban, Filipstad, Värmland, Sweden
Year of Discovery:1925
Geological Setting of type material:In hydrothermal calcite veins and veinlets in hematite skarn and skarnized limestones
Associated Minerals at type locality:
SwedenborgiteRichteriteManganophyllite

Physical Properties of Bromellite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:White to creamy white
Hardness (Mohs):9
Cleavage:Distinct/Good
on {10_10}
Density (measured):3.017 g/cm3
Density (calculated):3.044 g/cm3

Crystallography of Bromellite

Crystal System:Hexagonal
Class (H-M):6mm - Dihexagonal Pyramidal
Space Group:P63mc
Cell Parameters:a = 2.6983Å, c = 4.3776Å
Ratio:a:c = 1 : 1.622
Unit Cell Volume:V 27.60 ų (Calculated from Unit Cell)
Z:2
Morphology:As prismatic crystals, elongated along [0001], to 1 mm, showing pyramidal hemimorphism, with {000_1} and {10_10} well developed, {10_11} small, may be tabular parallel to {0001}; in randomly intergrown rosettelike aggregates; also as cleavage fragments, to 10 cm.
X-Ray Powder Diffraction:
d-spacingIntensity
2.061 (100)
2.337 (91)
2.189 (61)
1.349 (29)
1.238 (24)
1.598 (22)
1.1482 (16)
Comments:Recorded on synthetic material

Optical Data of Bromellite

Type:Uniaxial (+)
RI values: nω = 1.705 - 1.719 nε = 1.733
Maximum Birefringence:δ = 0.028

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

Chemical Properties of Bromellite

Formula:
BeO
Essential elements:Be, O
All elements listed in formula:Be, O
Analytical Data:Chemical analysis of material from Långban, Sweden
Al2O3   (0.17)
Sb2O3   (0.29)
BeO    (98.02)
MgO     (0.07)
CaO     (1.03)
BaO     (0.55)
LOI     (0.85)

sum    100.98
Common Impurities:Al,B,Ba,Ca,Fe,Mg,Si

Relationship of Bromellite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.AB.05Crednerite
CuMnO
 
2
4.AB.10Tenorite
CuO
4.AB.15Delafossite
CuFeO
 
2
4.AB.15Mcconnellite
CuCrO
 
2
4.AB.20Zincite
(Zn,Mn
2+
 
,Fe
2+
 
)O
4.AB.25Bunsenite
NiO
4.AB.25Lime
CaO
4.AB.25Manganosite
MnO
4.AB.25Monteponite
CdO
4.AB.25Periclase
MgO
4.AB.25Wüstite
FeO
4.AB.30Palladinite
PdO
Related Minerals - Hey's Index Grouping:

- +
7.4.2Behoite
Be(OH)
 
2
7.4.3Clinobehoite
Be(OH)
 
2
7.4.4Chrysoberyl
BeAl
 
2
O
 
4
7.4.5Magnesiotaaffeite-2N’2S
Mg
 
3
Al
 
8
BeO
 
16
7.4.6Magnesiotaaffeite-6N’3S
Mg
 
2
BeAl
 
6
O
 
12
7.4.7Periclase
MgO
7.4.8Brucite
Mg(OH)
 
2
7.4.9Spinel
MgAl
 
2
O
 
4
7.4.10Meixnerite
Mg
 
6
Al
 
2
(OH)
 
16
(OH)
 
2
· 4H
 
2
O
7.4.11Lime
CaO
7.4.12Portlandite
Ca(OH)
 
2
7.4.13Chlormayenite
Ca
 
12
Al
 
14
O
 
32
Cl
 
2
7.4.14Hydrocalumite
Ca
 
4
Al
 
2
(OH)
 
12
(Cl,CO
 
3
,OH)
 
2
· 4H
 
2
O
7.4.15Marokite
CaMn
 
2
O
 
4
7.4.16Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
· 3H
 
2
O
7.4.17Hollandite
Ba(Mn
4+
6
Mn
3+
2
)O
 
16
7.4.18Romanèchite
(Ba,H
 
2
O)
 
2
Mn
 
5
O
 
10
7.4.19Todorokite
(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)
 
6
O
 
12
· 3H
 
2
O

Other Names for Bromellite

Other Languages:
German:Bromellit
Russian:Бромеллит
Simplified Chinese:铍石
Spanish:Bromellita
Traditional Chinese:鈹石

Other Information

Fluorescence in UV light:Yellowish white in both LW and SW UV
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 Bromellite

Reference List:

- +
Aminoff (1925), Zeitschrift für Kristallographie 62, 113-122.

American Mineralogist (1926), 11, 135.

Palache, C., Berman, H. and Frondel, C. (1944): The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides, John Wiley and Sons, Inc. (New York), 7th edition, revised and enlarged, 506-507.

Hazen, R. M. and Finger, L. W. (1986): High-pressure and high-temperature crystal chemistry of beryllium oxide. J. Appl. Phys. 59, 3728-3733.

Larsen, A. O., Asheim, A. and Berge, S. A. (1987): Bromellite from syenite pegmatite, southern Oslo region, Norway. Canadian Mineralogist 25, 425-428.

Anthony, J. W. et al. (1997): Handbook of Mineralogy, Vol. 3, 79.

Internet Links for Bromellite

Search Engines:
  • Look for Bromellite on Google
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  • External Links:
  • Look for Bromellite on Webmineral
  • Look for Bromellite on Athena Mineralogy
  • Look for Bromellite on Wikipedia
  • Look for Bromellite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Bromellite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Buy from McDougall Minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
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  • Find Bromellite on www.crystalclassics.co.uk
  • Fine and rare minerals from mintreasure.com
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Search for Bromellite on Well-Arranged Molecules
  • Bromellite specimens for sale - minfind.com
  • Buy RARE Minerals from Rocks of Africa
  • Wilensky Fine Minerals
  • rare and unusual minerals mainly crystallized
  • Localities for Bromellite

    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.
    Australia
     
    • New South Wales
      • Clive Co.
        • Torrington
    H.F. Henley et al. Grafton-MacLean 1:250 000 Metallogenic Map and Mineral Deposit Data sheets, 2001
    China
     
    • Hunan Province
      • Chenzhou Prefecture
        • Linwu Co.
          • Xianghualing Sn-polymetallic ore field
    Xihuan Zhang and Yufeng Ren (2008): Acta Petrologica et Mineralogica 27(2), 135-151
    France
     
    • Languedoc-Roussillon
      • Pyrénées-Orientales
        • Prats de Mollo-La Preste (Prats de Molló-La Presta)
    Dubru. M, (1986) Pétrologie et géochimie du marbre à brucite et des borates associés au gisement de tungstène de Costabonne, (Pyrénées orientales, France) 930p
    Norway
     
    • Telemark
      • Porsgrunn
        • Mørje
          • Sagåsen
    Larsen, A.O. , Asheim, A. and Berge, S.A. (1987). Bromellite from syenite pegmatite, Southern Oslo region, Norway. Canadian mineralogist, 25,425-428.
    Russia
     
    • Northern Region
      • Karelia Republic
        • Ladoga Region
          • Pitkyaranta District (Pitkäranta District)
    No reference listed
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Khibiny Massif
    [World of Stones 95:5-6, p64]
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Malyshevo
              • Izumrudnye Kopi area
                • Malyshevskoe deposit (Mariinskoe)
    Avdonin V.N., Polenov Yu.A. (2004) Essays on Uralian minerals, - UGGA press, p. 419 (in Rus.).
    Sweden
     
    • Värmland
      • Filipstad
    Zeits. Krist. Min.(1925) 62, 113-122; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1028; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
        • Persberg district
          • Pajsberg
    Österberg, Ö. & Nysten, P. (1994): Ett för Harstigen nytt Be-mineral. Långbansnytt. vol 10. [reprinted in: Långbansnytt. De första 20 åren 1983-2003. Långbansällskapet - Skrifter och rapporter. 2, 59]
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