Junoite (original) (raw)

A valid IMA mineral species

About JunoiteHide

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Formula:

Cu2Pb3Bi8(S,Se)16

Specific Gravity:

6.77 (Calculated)

Crystal System:

Monoclinic

Name:

For the type locality, the Juno mine, Australia.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:2124:7

4ed8511c-e7d4-4f46-88fe-186d38990041

IMA Classification of JunoiteHide

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Type description reference:

Classification of JunoiteHide

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2.JB.25a

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb

3.7.14.1

3 : SULFOSALTS
7 : ø = 2

3.7.40

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
7 : Sulphides etc. of V, As, Sb and Bi

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Physical Properties of JunoiteHide

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Hardness:

VHN100=114 - 213 - Vickers

Cleavage:

Distinct/Good
One good

Density:

6.77 g/cm3 (Calculated)

Optical Data of JunoiteHide

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Reflectivity:

Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 42.8%.
R1 shown in black, R2 shown in red

Colour in reflected light:

creamy white

Comments:

Cream to gray with green and mauve tints

Chemistry of JunoiteHide

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Mindat Formula:

Cu2Pb3Bi8(S,Se)16

Crystallography of JunoiteHide

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Crystal System:

Monoclinic

Class (H-M):

2/m - Prismatic

Cell Parameters:

a = 26.66(1) Å, b = 4.06(1) Å, c = 17.03(1) Å
β = 127.2(2)°

Ratio:

a:b:c = 6.567 : 1 : 4.195

Unit Cell V:

1,468.26 ų (Calculated from Unit Cell)

Morphology:

As tabular crystals, to 150 µm, and irregular grains.

Crystal StructureHide

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ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0000465	Junoite	Mumme W G (1975) Junoite, Cu2Pb3Bi8(S,Se)16, a new sulfosalt from Tennant Creek, Australia: Its crystal structure and relationship with other bismuth sulfosalts American Mineralogist 60 548-558		1975	0	293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

Geological EnvironmentHide

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Type Occurrence of JunoiteHide

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Place of Conservation of Type Material:

Geology Department, University of New England, Armidale, Australia, R27790.

Associated Minerals at Type Locality:

Reference:

Mumme, W.G. (1975) Junoite, Cu2Pb3Bi8(S,Se)16, a new sulfosalt from Tennant Creek, Australia: Its crystal structure and relationship with other bismuth sulfosalts. American Mineralogist: 60: 548-558.

Synonyms of JunoiteHide

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Other Language Names for JunoiteHide

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Varieties of JunoiteHide

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Common AssociatesHide

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Associated Minerals Based on Photo Data:

Related Minerals - Strunz-mindat GroupingHide

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Other InformationHide

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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 JunoiteHide

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References for JunoiteHide

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Localities for JunoiteHide

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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

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- 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). 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.