Magnolite
A valid IMA mineral species - grandfathered
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About Magnolite
Formula:
[Hg2]2+[Te4+O3]
Colour:
Colorless, creamy white; also pale yellow green (Mountain Lion Mine).
Lustre:
Sub-Adamantine, Sub-Vitreous, Waxy, Greasy
Specific Gravity:
8.12 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in 1877 by Frederick Genth for the type location in the Magnolia district. Re-investigated by Roberts et al. (1989).
This page provides mineralogical data about Magnolite.
Unique Identifiers
Mindat ID:
2542
Long-form identifier:
mindat:1:1:2542:9
GUID
(UUID V4):
(UUID V4):
53f44fef-594d-4786-96f5-e66b9bddbac9
IMA Classification of Magnolite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Hg1+2(Te4+O3)
Classification of Magnolite
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
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 ed.:
34.1.8.1
34.1.7.1
34 : SELENITES, TELLURITES AND SULFITES
1 : A(XO3)
34 : SELENITES, TELLURITES AND SULFITES
1 : A(XO3)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mno | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Magnolite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Magnolite
Sub-Adamantine, Sub-Vitreous, Waxy, Greasy
Transparency:
Transparent
Comment:
May be in silky in aggregates.
Colour:
Colorless, creamy white; also pale yellow green (Mountain Lion Mine).
Streak:
Colorless, also light brown (Mountain Lion Mine)
Comment:
Soft
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on {001}
Good perpendicular to {001}
Perfect on {001}
Good perpendicular to {001}
Density:
8.12 g/cm3 (Calculated)
Optical Data of Magnolite
Type:
Biaxial (+)
Optical Extinction:
Parallel. Y = a; X = b; Z = c.
Pleochroism:
Non-pleochroic
Comments:
n=>2, 2V => 45.
Chemistry of Magnolite
Mindat Formula:
[Hg2]2+[Te4+O3]
Elements listed:
Crystallography of Magnolite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Cell Parameters:
a = 5.948(1) Å, b = 10.580(2) Å, c = 3.745(1) Å
Ratio:
a:b:c = 0.562 : 1 : 0.354
Unit Cell V:
235.67 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Bladed crystals, tufted aggregates.
Comment:
Roberts et al. (1989)
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005221 | Magnolite | Grice J D (1989) The crystal structure of magnolite, Hg2TeO3 The Canadian Mineralogist 27 133-136 |  | 1989 | Mount Lion Mine, Colorado, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.25 Å | (50) |
| 3.95 Å | (70) |
| 3.74 Å | (40) |
| 3.17 Å | (30) |
| 3.043 Å | (100) |
| 2.587 Å | (50) |
| 1.986 Å | (40) |
| 1.944 Å | (35) |
Comments:
Roberts et al. (1989)
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Magnolite
General Appearance of Type Material:
Colorless to needles or white laths on goethite on coloradoite ore.
Place of Conservation of Type Material:
National Museum of Natural History (Smithsonian Institute), Washington, D.C., USA, number 165455.
Geological Setting of Type Material:
A late alteration product or the weathdring zone of complex polymetallic mineral deposits.
Associated Minerals at Type Locality:
Other Language Names for Magnolite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 4.JK. | Matthiasweilite | PbTe4+O3 |
| 4.JK.05 | Winstanleyite | TiTe4+3O8 |
| 4.JK.05 | Walfordite | (Fe3+,Te6+)Te4+3O8 |
| 4.JK.10 | Spiroffite | Mn2+2Te4+3O8 |
| 4.JK.10 | Zincospiroffite | Zn2Te4+3O8 |
| 4.JK.15 | Balyakinite | Cu(TeO3) |
| 4.JK.20 | Rajite | Cu(Te4+2O5) |
| 4.JK.25 | Carlfriesite | CaTe4+2Te6+O8 |
| 4.JK.30 | Denningite | (Mn2+,Ca,Zn)Te4+2O5 |
| 4.JK.35 | Chekhovichite | Bi2Te4+4O11 |
| 4.JK.40 | Smirnite | Bi2Te4+O5 |
| 4.JK.45 | Choloalite | (Cu,Sb)3(Pb,Ca)3(TeO3)6Cl |
| 4.JK.50 | Fairbankite | Pb2+12(Te4+O3)11(SO4) |
| 4.JK.55 | Plumbotellurite | Pb(TeO3) |
| 4.JK.65 | Moctezumite | Pb(UO2)(TeO3)2 |
| 4.JK.70 | Schmitterite | (UO2)(TeO3) |
| 4.JK.75 | Cliffordite | (UO2)Te4+3O7 |
Fluorescence of Magnolite
Not fluorescent.
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.
Internet Links for Magnolite
mindat.org URL:
https://www.mindat.org/min-2542.html
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References for Magnolite
Reference List:
Localities for Magnolite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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.
USA (TL) | |
| |
|
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Keystone Mine, Magnolia Mining District, Boulder County, Colorado, USA