SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Cupromolybdite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About CupromolybditeHide

Formula:
Cu3O(MoO4)2
Colour:
Honey-yellow to chestnut-brown or dark brown; bright yellow
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
4.512 (Calculated)
Crystal System:
Orthorhombic
Name:
For the chemical composition.
Isostructural with:
S-free analogue of vergasovaite.


Classification of CupromolybditeHide

Approved
Approval year:
2011
First published:
2012

Physical Properties of CupromolybditeHide

Adamantine
Transparency:
Translucent
Colour:
Honey-yellow to chestnut-brown or dark brown; bright yellow
Streak:
Yellow or light brown
Hardness:
Hardness:
VHN50=189 kg/mm2 - Vickers
Comment:
Mohs hardness derived from VHN.
Tenacity:
Brittle
Cleavage:
Distinct/Good
Fracture:
Irregular/Uneven, Splintery
Density:
4.512 g/cm3 (Calculated)

Optical Data of CupromolybditeHide

Anisotropism:
Distinct
Bireflectance:
Weak
Reflectivity:
400nmR1=17.0%R2= 18.5%
420nmR1=16.3%R2= 17.7%
440nmR1=15.7%R2= 17.1%
460nmR1=15.2%R2= 16.5%
480nmR1=14.7%R2= 16.1%
500nmR1=14.3%R2= 15.7%
520nmR1=13.9%R2= 15.3%
540nmR1=13.5%R2= 15.0%
560nmR1=13.1%R2= 14.6%
580nmR1=12.9%R2= 14.3%
600nmR1=12.4%R2= 13.8%
620nmR1=12.2%R2= 13.6%
640nmR1=12.15%R2= 13.5%
660nmR1=11.9%R2= 13.2%
680nmR1=17.0%R2= 18.5%
700nmR1=16.3%R2= 17.7%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 18.5%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Grey, with a weak bluish hue
Internal Reflections:
Orange-red or orange-brown
Pleochroism:
Non-pleochroic

Chemical Properties of CupromolybditeHide

Formula:
Cu3O(MoO4)2
IMA Formula:
Cu2+3O(Mo6+O4)2

Crystallography of CupromolybditeHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 7.6638(1) Å, b = 6.8670(1) Å, c = 14.5554(2) Å
Ratio:
a:b:c = 1.116 : 1 : 2.12
Unit Cell V:
766.01 ų
Z:
4

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019362CupromolybditeZelenski M E, Zubkova N V, Pekov I V, Polekhovsky Y S, Pushcharovsky D Y (2012) Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia European Journal of Mineralogy 24 749-7572012the Tolbachik volcano, Kamchatka Peninsula, Russia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.312 Å(67)
3.842 Å(37)
3.701 Å(38)
3.664 Å(30)
3.518 Å(55)
3.436 Å(100)
3.301 Å(99)
3.065 Å(79)
2.556 Å(62)
2.506 Å(66)

Type Occurrence of CupromolybditeHide

General Appearance of Type Material:
Prismatic or acicular crystals up to 0.15 mm in length; radiating aggregates.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia: registration number is 4072/1.
Geological Setting of Type Material:
Within 2-5 cm thick sublimate crusts, along with other fumarolic minerals.
Associated Minerals at Type Locality:
Reference:
Zelenski, M.E., Zubkova, N.V., Pekov, I.V., Polekhovsky, Yu.S. & Pushcharovsky, D.Yu. (2012) Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia. European Journal of Mineralogy: 24: 749-757.

Synonyms of CupromolybditeHide

Other InformationHide

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 CupromolybditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zelenski, M.E., Zubkova, N.V., Pekov, I.V., Polekhovsky, Yu.S. & Pushcharovsky, D.Yu. (2012) Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia. European Journal of Mineralogy: 24: 749-757.

Internet Links for CupromolybditeHide

Localities for CupromolybditeHide

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

- 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). 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Kamchatka Krai
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
          • Second scoria cone
Zelenski, M.E., Zubkova, N.V., Pekov, I.V., Polekhovsky, Yu.S. & Pushcharovsky, D.Yu. (2012): Cupromolybdite, Cu3O(MoO4)2, a new fumarolic mineral from the Tolbachik volcano, Kamchatka Peninsula, Russia. European Journal of Mineralogy, 24, 749-757.
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2021, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us - Report a bug/vulnerability Current server date and time: January 16, 2021 08:41:21 Page generated: January 8, 2021 11:52:30
Go to top of page