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 Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Tom Engvoldsen's Photo Gallery

31U-HUMMelanocerite-(Ce) (Ce,Ca)5(SiO4,BO4)3(OH,0) , Aegirine NaFe3+Si2O6 , Microcline K(AlSi3O8) , Analcime Na(AlSi2O6)·H2O

03746440014948127349496.jpg
Kjeøya, Barkevik area, Langesundsfjorden, Larvik, Vestfold, Norway

Tabular xls of brownish black melanocerite-(Ce) embedded in analcime after sodalite. Together with aegirine, microcline and zircon.

Specimen size: 5,5 x 3,5 x 1,5 cm

(Not found at the TL pegmatite, but another nephelinesyenite pegmatite dike at Kjeøya)
Copyright: © Tom Engvoldsen      Photo ID: 187548     Uploaded by: Tom Engvoldsen   View Count: 1161   Approval status: Public galleries    Type: Photo - 750 x 488 pixels (0.4 Mpix)

G8K-8D3Zirsilite-(Ce) Na11-12(Ce,Na)3Ca6Mn3Zr3Nb(Si19O55)(Si3O9)2(CO3)(OH)3·H2O

04940530014948127343858.jpg
Sagåsen Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway

Dimensions: 8 cm x 5.5 cm x 2.5 cm

Yellow orange zirsilite-(Ce) in a albite-aegirine-nepheline matrix filling cavities of larger microcline crystals.
The greenish yellow mineral at center left may be fluorapatite.

Specimen size: 8 x 5,5 x 2,5 cm

Copyright: © Tom Engvoldsen      Photo ID: 187543     Uploaded by: Tom Engvoldsen   View Count: 685   Approval status: Public galleries    Type: Photo - 750 x 622 pixels (0.5 Mpix)

CMH-HA1Rinkite-(Ce) (Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2

07570050014946631409865.jpg
Arøyskjærene North, Arøyskjærene, Langesundsfjorden, Larvik, Vestfold, Norway

Dimensions: 6 cm x 4.5 cm x 4 cm

Brownish rinkite xls in microcline-aegrine-nepheline.
Specimen size 6 x 4.5 x 4 cm.

Found: 1983
Copyright: © Tom Engvoldsen      Photo ID: 179584     Uploaded by: Tom Engvoldsen   View Count: 991   Approval status: Public galleries    Type: Photo - 750 x 580 pixels (0.4 Mpix)

3KP-798Rinkite Group AP2MH2MO4(Si2O7)2(XOM)2(XOA)2

08755140014949170545858.jpg
Lille Arøya, Langesundsfjorden, Larvik, Vestfold, Norway

Dimensions: 6.5 cm x 5 cm x 2 cm

Fresh Rinkite Group mineral (possible mosandrite) with deep brownishgreen colored crystals. Together with mirocline, nepheline and orange ferrokentbrooksite(?). Specimen 6.5 x 5 x 2 cm.

Found: 1984
Copyright: © Tom Engvoldsen      Photo ID: 179581     Uploaded by: Tom Engvoldsen   View Count: 566   Approval status: Public galleries    Type: Photo - 750 x 563 pixels (0.4 Mpix)

UNW-841Eirikite KNa6Be2(Si15Al3)O39F2 , Microcline K(AlSi3O8)

08710460014946662425876.jpg
Eudidymite-Epididymite locality, Vesle Arøya, Langesundsfjorden, Larvik, Vestfold, Norway

Dimensions: 5 cm x 2.5 cm x 1.5 cm

Eirikite filling microcline cavity.
Specimen 5 x 2.5 x 1.5 cm.

Found: 1984-04-24
Copyright: © Tom Engvoldsen      Photo ID: 179280     Uploaded by: Tom Engvoldsen   View Count: 1687   Approval status: Public galleries    Type: Photo - 750 x 521 pixels (0.4 Mpix)

DYR-XJ5Eirikite KNa6Be2(Si15Al3)O39F2

02334880014962491801449.jpg
Eudidymite-Epididymite locality, Vesle Arøya, Langesundsfjorden, Larvik, Vestfold, Norway

Dimensions: 6 cm x 4 cm x 3 cm

Specimen 6 x 4 x 3 cm with silky white eirikite.
Confirmed by EDS.

Found: 1983-11-04
Copyright: © Tom Engvoldsen      Photo ID: 179278     Uploaded by: Tom Engvoldsen   View Count: 672   Approval status: Public galleries    Type: Photo - 750 x 562 pixels (0.4 Mpix)

DGG-G39Amesite Mg2Al(AlSiO5)(OH)4

09709450014947571975060.jpg
Heia Quarry, Tvedalen, Larvik, Vestfold, Norway

Crystal fragment (25 x 15 x 7 mm) of greyish green amesite.
Confirmed by XRD. The crystal is confined within natrolite ("spreustein").
Pseudomorphous after astrophyllite?

Found: 1989-11-27
Copyright: © Tom Engvoldsen      Photo ID: 178406     Uploaded by: Tom Engvoldsen   View Count: 1080   Approval status: Public galleries    Type: Photo - 750 x 866 pixels (0.6 Mpix)

N4E-TT2Eudidymite Na2Be2Si6O15·H2O

09405370014946720841593.jpg
Eudidymite locality, Lille Arøya, Langesundsfjorden, Larvik, Vestfold, Norway

Dimensions: 25 mm x 12 mm x 7 mm

25 x 12 x 7 mm crystal of eudidymite

Found: 1983
Copyright: © Tom Engvoldsen      Photo ID: 178405     Uploaded by: Tom Engvoldsen   View Count: 518   Approval status: Public galleries    Type: Photo - 750 x 479 pixels (0.4 Mpix)

XRD-5GUChiavennite CaMnBe2Si5O13(OH)2·2H2O

08501600014948127346534.jpg
Svensken Quarry, Tuften, Tvedalen, Larvik, Vestfold, Norway

1 mm bladed crystals of chiavennite in analcime.

Found: 1990-05-27
Copyright: © Tom Engvoldsen      Photo ID: 178404     Uploaded by: Tom Engvoldsen   View Count: 458   Approval status: Public galleries    Type: Photo - 500 x 654 pixels (0.3 Mpix)

48J-RL3Annite KFe2+3(AlSi3O10)(OH)2

09279710014948127348783.jpg
Saga 1 Quarry, Sagåsen, Auenlandet, Porsgrunn, Telemark, Norway

black annite xl (30 x 30 x 70 mm) in microcline

Found: 1984
Copyright: © Tom Engvoldsen      Photo ID: 178403     Uploaded by: Tom Engvoldsen   View Count: 712   Approval status: Public galleries    Type: Photo - 1038 x 790 pixels (0.8 Mpix)
Page 1 of 2 (1 to 10 of 16 total)
1 2
 
Mineral and/or Locality  
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 1993-2020, 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 Current server date and time: August 9, 2020 00:31:18
Go to top of page