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

Heyerdahlite

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

About HeyerdahliteHide

Thor Heyerdahl
Formula:
Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2
Colour:
Colourless to pale brown
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.245 (Calculated)
Crystal System:
Triclinic
Name:
Named after the Norwegian adventurer and ethnographer Thor Heyerdal (October 6, 1914, Larvik, Norway – April 18, 2002, Colla Micheri, Italy) notable for his Kon-Tiki expeditions in 1947 and his Ra expeditions in 1969 and 1970, on the papyrus ships Ra I and Ra II. The mineral raite was named after the international group of scientists on the later voyage.
Structure determined.

Compare, e.g., intersilite, janhaugite, and normandite.


Classification of HeyerdahliteHide

Approved
Approval Year:
2016
First Published:
2018

Physical Properties of HeyerdahliteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless to pale brown
Hardness:
Cleavage:
Perfect
Perfect parallel to {001}
Density:
3.245 g/cm3 (Calculated)

Optical Data of HeyerdahliteHide

Type:
Biaxial (+)
RI values:
nα = 1.694(2) nβ = 1.710(5) nγ = 1.730(5)
2V:
Measured: 80° (4), Calculated: 84.5°
Max Birefringence:
δ = 0.036
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of HeyerdahliteHide

Formula:
Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2

Crystallography of HeyerdahliteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.392(2) Å, b = 11.968(4) Å, c = 11.868(4) Å
α = 112.743(8)°, β = 94.816(7)°, γ = 103.037(8)°
Ratio:
a:b:c = 0.451 : 1 : 0.992
Unit Cell V:
675.6 ų
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.745(81)
3.582(66)
2.791(65)
2.686(45)
2.663(65)
2.594(100)
2.496(51)
1.582(45)
Comments:
From Type Description.

Type Occurrence of HeyerdahliteHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Royal Ontario Museum,Toronto, Ontario, Canada, accession number M57516.
Associated Minerals at Type Locality:
Reference:
Sokolova, E., Day, M.C., Hawthorne, F.C., Kristiansen, R. (2018) Heyerdahlite, Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2, a new mineral of the astrophyllite supergroup from the Larvik Plutonic complex, Norway: Description and crystal structure. Mineralogical Magazine: 82: 243-255.

Synonyms of HeyerdahliteHide

Relationship of Heyerdahlite to other SpeciesHide

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 HeyerdahliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sokolova, E., Day, M.C., Hawthorne, F.C. and Kristiansen, R. (2017) Heyerdahlite, IMA 2016-108. CNMNC Newsletter No. 36, April 2017, page 407; Mineralogical Magazine: 81: 403–409.
Sokolova, E., Day, M.C., Hawthorne, F.C., Kristiansen, R. (2018) Heyerdahlite, Na3Mn7Ti2(Si4O12)2O2(OH)4F(H2O)2, a new mineral of the astrophyllite supergroup from the Larvik Plutonic complex, Norway: Description and crystal structure. Mineralogical Magazine: 82: 243-255.

Internet Links for HeyerdahliteHide

Localities for HeyerdahliteHide

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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Canadian Museum of Nature & Horváth collection specimens
Norway (TL)
 
  • Vestfold
    • Larvik
      • Hedrum
        • Lågendalen
Sokolova, E., Day, M.C., Hawthorne, F.C. and Kristiansen, R. (2017) Heyerdahlite, IMA 2016-108. CNMNC Newsletter No. 36, April 2017, page 407; Mineralogical Magazine: 81: 403 – 409
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 19, 2018 05:39:35 Page generated: October 15, 2018 05:39:09
Go to top of page