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Magnolite

Formula:
Hg
 
2
TeO
 
3
System:OrthorhombicColour:Colourless, creamy ...
Lustre:Adamantine, Silky
Name:For the type location in the Magnolia district.
This page provides mineralogical data about Magnolite.

Classification of Magnolite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/K.02-20
Nickel-Strunz 10th (pending) edition ID:4.JK.60

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
K : Tellurites without additional anions, without H2O
Dana 7th edition ID:34.1.8.1
Dana 8th edition ID:34.1.7.1

34 : SELENITES, TELLURITES AND SULFITES
1 : A(XO3)
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Type Occurrence of Magnolite

Type Locality:Keystone Mine, Magnolia District, Boulder Co., Colorado, USA
Place of Conservation of Type Material:Smithsonian Museum, Washington DC 165455
Year of Discovery:1877
Geological Setting of type material:A late alteration product or the weathdring zone of complex polymetallic mineral deposits.

Physical Properties of Magnolite

Lustre:Adamantine, Silky
Diaphaneity (Transparency):Transparent, Opaque
Comment:Silky in aggregates.
Colour:Colourless, creamy white, brown, yellow-green.
Streak:Pale brown
Comment:Soft
Tenacity:Brittle
Cleavage:Perfect
Perfect on {001}
Good perpendicular to {001}
Density (calculated):8.12 g/cm3

Crystallography of Magnolite

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Cell Parameters:a = 5.958(1) Å, b = 10.576(2) Å, c = 3.749(1) Å
Ratio:a:b:c = 0.563 : 1 : 0.354
Unit Cell Volume:V 236.23 ų (Calculated from Unit Cell)
Z:2
Morphology:Bladed crystals, tufted aggregates.

Optical Data of Magnolite

Type:Biaxial (+)
Comments:n=>2, 2V => 45

Chemical Properties of Magnolite

Formula:
Hg
 
2
TeO
 
3
Essential elements:Hg, O, Te
All elements listed in formula:Hg, O, Te
Empirical Formula:
Hg
1+
2
TeO
 
3

Relationship of Magnolite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JK.05Winstanleyite
TiTe
 
3
O
 
8
4.JK.05Walfordite
(Fe
3+
 
,Te
6+
 
)Te
4+
3
O
 
8
4.JK.10Spiroffite
(Mn,Zn)
 
2
Te
 
3
O
 
8
4.JK.10Zincospiroffite
Zn
 
2
[Te
 
3
O
 
8
]
4.JK.15Balyakinite
CuTeO
 
3
4.JK.20Rajite
Cu[Te
4+
2
O
 
5
]
4.JK.25Carlfriesite
CaTe
 
3
O
 
8
4.JK.30Denningite
(Mn
2+
 
,Ca,Zn)[Te
4+
2
O
 
5
]
4.JK.35Chekhovichite
Bi
 
2
Te
 
4
O
 
11
4.JK.40Smirnite
(BiO)
 
2
[TeO
 
3
]
4.JK.45Choloalite
PbCu[TeO
 
3
]
 
2
 · H
 
2
O
4.JK.50Fairbankite
PbTeO
 
3
4.JK.55Plumbotellurite
PbTeO
 
3
4.JK.65Moctezumite
PbUO
 
2
(TeO
 
3
)
 
2
4.JK.70Schmitterite
(UO
 
2
)[TeO
 
3
]
4.JK.75Cliffordite
UTe
 
3
O
 
9

Other Names for Magnolite

Other Languages:
German:Magnolit
Russian:Магнолит
Spanish:Magnolita

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 Magnolite

Reference List:American Mineralogist (1990): 75: 437.

Canadian Mineralogist (1989): 27: 133-136.

Articles/Blogs about Magnolite

Internet Links for Magnolite

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  • Raman and XRD data at RRUFF project
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    Localities for Magnolite

    (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.
    USA
     
    • Colorado
      • Boulder Co.
        • Magnolia District
    		Minerals of Colorado (1997) Eckel, E. B.
    Minerals of Colorado (1997) Eckel, E. B.
      • La Plata Co.
        • La Plata District (California District)
    		M.E. Ciriotti, 2006, probed
    Mineral and/or Locality
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