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

Silicocarnotite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Ca5[(SiO4)(PO4)](PO4)
May also be written Ca5SiP2O12
Colour:
Colourless (natural); blue (synthetic)
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.063 (Calculated)
Crystal System:
Orthorhombic
Name:
“silicocarnotite” has been used for the synthetic phase Ca5[(SiO4)(PO4)](PO)4 for more than 100 years.
Dimorph of:
Isotypic with ternesite. A member of the ternesite-silicocarnotite solid solution. Chemically similar to nagelschmidtite and 'ciplyite'.

Known for a long time as an artificial, calcium silico-phosphate in slag.

Natural material was found within the Hatrurim Complex. It is result of pyrometamorphism, and more specifically an interaction of primary "clinker minerals" (flamite, fluorellestadite-fluorapatite, larnite) with sulphate-bearing melts.



Hide all sections | Show all sections

Classification of SilicocarnotiteHide

Approved
Approval Year:
2013

Physical Properties of SilicocarnotiteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless (natural); blue (synthetic)
Streak:
White
Hardness:
Hardness:
VHN50=537 kg/mm2 - Vickers
Comment:
ca. 5
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
Not observed
Fracture:
Irregular/Uneven
Density:
3.063(1) g/cm3 (Calculated)

Optical Data of SilicocarnotiteHide

Type:
Biaxial (+)
RI values:
nα = 1.618(2) nβ = 1.621(2) nγ = 1.628(2)
2V:
Measured: 75° (5), Calculated: 67°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
medium (r > v)
Pleochroism:
Non-pleochroic

Chemical Properties of SilicocarnotiteHide

Formula:
Ca5[(SiO4)(PO4)](PO4)

May also be written Ca5SiP2O12
IMA Formula:
Ca5[(PO4)(SiO4)](PO4)
Common Impurities:
S

Crystallography of SilicocarnotiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 6.7230(1) Å, b = 15.4481(2) Å, c = 10.0847(2) Å
Ratio:
a:b:c = 0.435 : 1 : 0.653
Unit Cell V:
1047.37 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.815 (100)
2.596 (62)
2.575 (50)
3.285 (48)
3.903 (40)
3.007 (39)
3.176 (36)
1.746 (29)
3.082 (29)
Comments:
Concerns the natural material.

Type Occurrence of SilicocarnotiteHide

General Appearance of Type Material:
common grains with ternesite
Place of Conservation of Type Material:
mineralogical collections of the Museum of Natural History in Bern with catalogue number NMBE-42716
Geological Setting of Type Material:
pyrometamorphic gehlenite-bearing rocks
Associated Minerals at Type Locality:

Synonyms of SilicocarnotiteHide

Other Language Names for SilicocarnotiteHide

Relationship of Silicocarnotite to other SpeciesHide

Fluorescence of SilicocarnotiteHide

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 SilicocarnotiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Galuskin, E. et al. (2014): Silicocarnotite, an old and potentially new mineral from the Negev Desert, Israel. 21st General Meeting of the IMA (IMA2014), Gauteng, South Africa, September 1-5; Abstract Volume, 377.
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.

Internet Links for SilicocarnotiteHide

Localities for SilicocarnotiteHide

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.
Israel (TL)
 
  • Negev
    • Hatrurim Formation
      • Hatrurim (Hatrurim Basin)
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.
  • Southern District (HaDarom District)
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.
Palestine
 
  • West Bank
    • Hatrurim Formation
Galuskin, E.V., Galuskina, I.O., Gfeller, F., Krüger, B., Kusz, J., Vapnik, Y., Dulski, M., Dzierżanowski, P. (2016): Silicocarnotite, Ca5[(SiO4)(PO4)](PO4), a new ‘old’ mineral from the Negev Desert, Israel, and the ternesite-silicocarnotite solid solution: indicators of high-temperature alteration of pyrometamorphic rocks of the Hatrurim Complex, Southern Levant. European Journal of Mineralogy: 28: 105-12.
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 18:04:21 Page generated: October 7, 2018 09:51:21
Go to top of page