IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
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 Educators
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
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Raisaite

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

About RaisaiteHide

Formula:
CuMg[Te6+O4(OH)2]·6H2O
Colour:
light blue to bright sky blue
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
2.82
Crystal System:
Monoclinic
Name:
The mineral is named in honour of the Russian mineralogist Raisa A. Vinogradova (born 1935), Moscow State University
New structure type. Chemically very similar to leisingite.

Structure details:
- heteropolyhedral zig-zag chains comprising alternating edge-sharing TeO4(OH)2 and CuO4(H2O)2 octahedra
- Mg(H2O)6 octahedra, linked to the chains from two sides via sharing of oxygen-bearing vertices.
- hydrogen bonds, that link adjacent chains to form "layers", and also connect the layers


Classification of RaisaiteHide

Approved
Approval Year:
2014

Physical Properties of RaisaiteHide

Vitreous
Transparency:
Transparent
Colour:
light blue to bright sky blue
Hardness:
Cleavage:
Imperfect/Fair
probably on (100)
Fracture:
Irregular/Uneven
Density:
2.82(1) g/cm3 (Measured)    2.828 g/cm3 (Calculated)

Optical Data of RaisaiteHide

Type:
Biaxial (+)
RI values:
nα = 1.626(3) nβ = 1.642(5) nγ = 1.665(3)
2V:
Measured: 80° (10)
Max Birefringence:
δ = 0.039
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of RaisaiteHide

Formula:
CuMg[Te6+O4(OH)2]·6H2O
IMA Formula:
CuMg[Te6+O4(OH)2] · 6H2O

Crystallography of RaisaiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.9078(2) Å, b = 10.1325(3) Å, c = 9.8375(2) Å
γ = 91.839(2)°
Ratio:
a:b:c = 0.978 : 1 : 0.971

Warning: deg2rad() expects parameter 1 to be float, string given in /home/mindat/www/include.php on line 9251
Unit Cell V:
0.00 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.088(100)
5.815(35)
5.690(23)
4.949(91)
4.507(50)
3.533(17)
3.310(21)
2.694(29)
Comments:
From Type Description.

Type Occurrence of RaisaiteHide

General Appearance of Type Material:
prismatic crystals (up to 0.1 × 0.6 mm), as groups or crusts (up to 0.4 × 0.6 mm) and as dense roundish clusters (up to 0.2 mm in diameter) forming botryoidal aggregates (up to 1 mm across)
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4575/1
Geological Setting of Type Material:
in the oxidation zone of quartz veins
Associated Minerals at Type Locality:

Synonyms of RaisaiteHide

Other InformationHide

IR Spectrum:
spectrum is given
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 RaisaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Vlasov, E.A., Zubkova, N.V., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Apletalin, A.V., Zolotarev, A.A. and Pushcharovsky, D.Y. (2014) Raisaite, IMA 2014-046. CNMNC Newsletter No. 22, October 2014, page 1243; Mineralogical Magazine: 78: 1241-1248.
Pekov, I.V., Vlasov, E.A., Zubkova, N.V., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Apletalin, A.V., Zolotarev, A.A., Puschcharovsky, D.Y. (2016) Raisaite, CuMg[Te6+O4OH)2]·6H2O, a new mineral from Chukotka, Russia. European Journal of Mineralogy, 28: 459-466.

Internet Links for RaisaiteHide

Localities for RaisaiteHide

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)
 
  • Far-Eastern Region
    • Chukotskii Autonomous Okrug
Pekov, I.V., Vlasov, E.A., Zubkova, N.V., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Apletalin, A.V., Zolotarev, A.A. and Pushcharovsky, D.Y. (2014) Raisaite, IMA 2014-046. CNMNC Newsletter No. 22, October 2014, page 1243; Mineralogical Magazine, 78, 1241-1248; Pekov, I.V., Vlasov, E.A., Zubkova, N.V., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Apletalin, A.V., Zolotarev, A.A., Puschcharovsky, D.Y. (2016) Raisaite, CuMg[Te6+O4OH)2]·6H2O, a new mineral from Chukotka, Russia. European Journal of Mineralogy, 28: 459-466.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 18, 2018 10:17:24 Page generated: October 1, 2018 06:07:28
Go to top of page