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

Galuskinite

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

About GaluskiniteHide

Irina and Evgeny Galuskin
Formula:
Ca7(SiO4)3(CO3)
Colour:
Colourless, white, pale grey
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.096 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honour of the Russian mineralogists Irina Olegovna Galuskina (born 1961) and Evgeny Vadimovich Galuskin (born 1960), who work at the Faculty of Earth Sciences, University of Silesia, Sosnowiec, Poland.
This page provides mineralogical data about Galuskinite.


Classification of GaluskiniteHide

Approved
Approval Year:
2011

Physical Properties of GaluskiniteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless, white, pale grey
Streak:
White
Hardness:
Hardness:
VHN20=440 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
on {001}, {100} and {010}
Parting:
Perfect on {001}
Fracture:
Irregular/Uneven
Density:
3.096 g/cm3 (Calculated)

Optical Data of GaluskiniteHide

Type:
Biaxial (-)
RI values:
nα = 1.660(3) nβ = 1.669(3) nγ = 1.676(3)
2V:
Measured: 60° (5), Calculated: 82.4°
Birefringence:
0.016
Max Birefringence:
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic

Chemical Properties of GaluskiniteHide

Formula:
Ca7(SiO4)3(CO3)
IMA Formula:
Ca7(SiO4)3(CO3)

Crystallography of GaluskiniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P1 21/c 1
Cell Parameters:
a = 18.7872(2) Å, b = 6.7244(2) Å, c = 10.4673(2) Å
β = 90.788(1)°
Ratio:
a:b:c = 2.794 : 1 : 1.557
Unit Cell V:
1322.24 ų
Z:
4
Twinning:
Simple and polysynthetic twins on {001}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
18.785 (56)
2.7338 (98)
2.7141 (78)
2.7032 (100)
2.7030 (85)
2.6706 (100)
2.6166 (82)
1.9251 (53)

Type Occurrence of GaluskiniteHide

General Appearance of Type Material:
Heavily fractured and twinned grains up to 0.5 mm in size.
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia: 4050/1; Natural History Museum, Berne, Switzerland: NMBE-40811.
Geological Setting of Type Material:
It was found in altered silicate-carbonate xenoliths a few metres in diameter in the Birkhin gabbro massif. Galuskinite occurs in thin veins cutting calcio-olivine skarn with relict larnite and is a retrograde product of skarn alteration.
Associated Minerals at Type Locality:

Synonyms of GaluskiniteHide

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 GaluskiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Lazic, B., Armbruster, T., Savelyeva, V.B., Zadov, A.E., Pertsev, N.N. and Dzierzanowski, P. (2011): Galuskinite, Ca7(SiO4)3(CO3), a new skarn mineral from the Birkhin gabbro massif, Eastern Siberia, Russia. Mineralogical Magazine, 75, 2631-2648.

Internet Links for GaluskiniteHide

Localities for GaluskiniteHide

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)
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Narin-Kunta
Armbruster, T., Lazic, B., Gfeller, F., Galuskin, E.V., Galuskina, I.O., Savelyeva, V.B., Zadov, A.E., Pertsev, N.N., Dzierżanowski, P. (2011): Chlorine content and crystal chemistry of dellaite from the Birkhin gabbro massif, Eastern Siberia, Russia. Mineralogical Magazine, 75, 379-394; Lazic, B., Armbruster, T., Savelyeva, V.B., Zadov, A.E., Pertsev, N.N. and Dzierzanowski, P. (2011): Galuskinite, Ca7(SiO4)3(CO3), a new skarn mineral from the Birkhin gabbro massif, Eastern Siberia, Russia. Mineralogical Magazine, 75, in press.
  • Northern Caucasus Region
    • Kabardino-Balkarian Republic
      • Baksan Valley
Galuskin, E.V., Galuskina, I.O., Kusz, J., Gfeller, F., Armbruster, T., Bailau, R., Dulski, M., Gazeev, V.M., Pertsev, N.N., Zadov, A.E., Dzieržanowski, P. (2015): Mayenite supergroup, part II: Chlorkyuygenite from Upper Chegem, northern Caucasus Kabardino-Balkaria, Russia, a new microporous mayenite supergroup mineral with “zeolitic” H2O. European Journal of Mineralogy. 27, 113-122
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 17, 2018 19:12:04 Page generated: June 8, 2018 03:05:41
Go to top of page