Maleevite
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Bulgarian mineralogist Mikhail Naidenovitch Maleev.
Formula:
BaB2Si2O8
Colour:
White
Lustre:
Vitreous
Specific Gravity:
2.65 (Calculated)
Crystal System:
Orthorhombic
Name:
After the Bulgarian mineralogist Mikhail Naidenovitch Maleev (born 1940), a wellknown expert on the morphology of crystals and mineral systematics.
Classification of Maleevite
Approved
Approval Year:
2002
9.FA.65
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
Physical Properties of Maleevite
Optical Data of Maleevite
Type:
Biaxial (-)
RI values:
nα = 1.649 nβ = 1.656 nγ = 1.656
Max Birefringence:
δ = 0.007
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
Chemical Properties of Maleevite
Formula:
BaB2Si2O8
Elements listed:
Crystallography of Maleevite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Cell Parameters:
a = 8.141 Å, b = 8.176 Å, c = 9.038 Å
Ratio:
a:b:c = 0.996 : 1 : 1.105
Unit Cell V:
601.58 ų
Z:
2
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.62 | (1) |
| 2.021 | (0.7) |
| 3.39 | (0.6) |
| 6.07 | (0.6) |
| 2.83 | (0.5) |
| 2.481 | (0.4) |
| 4.86 | (0.3) |
Type Occurrence of Maleevite
Synonyms of Maleevite
Other Language Names for Maleevite
Related Minerals - Nickel-Strunz Grouping
| 9.FA.05 | Kaliophilite | KAlSiO4 | Hex. |
| 9.FA.05 | Kalsilite | KAlSiO4 | Hex. 6 2 2 : P63 2 2 |
| 9.FA.05 | Nepheline | (Na,K)AlSiO4 | Hex. 6 : P63 |
| 9.FA.05 | Panunzite | (K,Na)AlSiO4 | Hex. 6 : P63 |
| 9.FA.05 | Trikalsilite | (K,Na)AlSiO4 | Hex. |
| 9.FA.05 | Yoshiokaite | (Ca,Na)[Al(Al,Si)O4] | Trig. 3 : P3 |
| 9.FA.05 | Megakalsilite | KAlSiO4 | Hex. |
| 9.FA.10 | Malinkoite | NaBSiO4 | Hex. 6 : P63 |
| 9.FA.15 | Virgilite | LiAlSi2O6 | Hex. 6 2 2 : P62 2 2 |
| 9.FA.25 | Lisitsynite | KBSi2O6 | Orth. 2 2 2 : P2 2 2 |
| 9.FA.30 | Adularia | KAlSi3O8 | Mon. |
| 9.FA.30 | Anorthoclase | (Na,K)AlSi3O8 | Tric. |
| 9.FA.30 | Buddingtonite | (NH4)(AlSi3)O8 | Mon. 2 : P21 |
| 9.FA.30 | Celsian | Ba(Al2Si2O8) | Mon. 2/m |
| 9.FA.30 | Hyalophane | (K,Ba)[Al(Si,Al)Si2O8] | Mon. |
| 9.FA.30 | Microcline | K(AlSi3O8) | Tric. 1 |
| 9.FA.30 | Orthoclase | K(AlSi3O8) | Mon. 2/m : B2/m |
| 9.FA.30 | Sanidine | K(AlSi3O8) | Mon. 2/m : B2/m |
| 9.FA.30 | Rubicline | Rb(AlSi3O8) | Tric. |
| 9.FA.30 | Monalbite | NaAlSi3O8 | Mon. 2/m : B2/m |
| 9.FA.35 | Albite | Na(AlSi3O8) | Tric. 1 |
| 9.FA.35 | Andesine | (Na,Ca)[Al(Si,Al)Si2O8] | Tric. |
| 9.FA.35 | Anorthite | Ca(Al2Si2O8) | Tric. 1 : P1 |
| 9.FA.35 | Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] | Tric. |
| 9.FA.35 | Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] | |
| 9.FA.35 | Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] | |
| 9.FA.35 | Reedmergnerite | NaBSi3O8 | Tric. |
| 9.FA.40 | Paracelsian | Ba(Al2Si2O8) | Mon. |
| 9.FA.45 | Svyatoslavite | Ca(Al2Si2O8) | Orth. |
| 9.FA.45 | Kumdykolite | Na(AlSi3O8) | Orth. mmm (2/m 2/m 2/m) : Pnnm |
| 9.FA.50 | Slawsonite | Sr(Al2Si2O8) | Mon. |
| 9.FA.55 | Lisetite | CaNa2Al4Si4O16 | Orth. |
| 9.FA.60 | Banalsite | Na2BaAl4Si4O16 | Orth. |
| 9.FA.60 | Stronalsite | Na2SrAl4Si4O16 | Orth. |
| 9.FA.65 | Danburite | CaB2Si2O8 | Orth. mmm (2/m 2/m 2/m) |
| 9.FA.65 | Pekovite | SrB2Si2O8 | |
| 9.FA.70 | Lingunite | (Na,Ca)AlSi3O8 | Tet. 4/m : I4/m |
| 9.FA.75 | Kokchetavite | K(AlSi3O8) | Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm |
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.
References for Maleevite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Canadian Mineralogist (2004): 42: 107-119.
Internet Links for Maleevite
mindat.org URL:
https://www.mindat.org/min-25698.html
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Localities for Maleevite
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The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Tajikistan (TL) | |
| Am Min 90:272-3 |
Darai-Pioz Glacier, Alai Range, Tien Shan Mtn, Region of Republican Subordination, Tajikistan