Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery
Loading...

Edgars Endzelins' Mindat Home Page

My PageMy PhotosMy GalleriesMy FavouritesMy Sponsored PagesMy EventsContact Me

About Edgars Endzelins

Registered member since 7th Oct 2007

Edgars Endzelins has uploaded:
78 Mineral Photos
53 Locality Photos
53 Other Photos
 
Edgars does not yet have a home page article.

 

Favourite Photos

MC6-EXDFluorbritholite-(Ce) : Ca2(Ce,Ca)3(SiO4,PO4)3(F,OH), Allanite-(Ce) : {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)

Multiple photos available
"Cerite" occurrences, Jamestown, Jamestown District, Boulder Co., Colorado, USA

Dimensions: 5.5 cm x 4.5 cm x 3 cm

H:5.5cm x W:4.5cm x D:3cm

This is a specimen of grey, massive fluobritholite-Ce which is outlined by a "rind" of allanite-ce, all in a quartz/feldspar matrix. Microscopic grains of uraninite are included in the grey mass which causes the piece to be mildly radioactive. Yttrofluorite, monazite-(Ce), zircon, and other uranium silicates have been reported from this find, and may be present in this sample.

Collected by Philip Persson in 2011 and subsequently tested and ID'd by Pavel M. Kartashov - see http://www.mindat.org/photo-402435.html
Copyright: © Maggie Wilson      Photo ID: 458144     Uploaded by: Maggie Wilson   View Count: 231   Approval status: Public galleries    Type: Photo - 500 x 479 pixels (0.2 Mpix)

VEE-509Millerite : NiS, Calcite : CaCO3

Multiple photos available
Mount Diablo Mine, Mount Diablo, Mount Diablo State Park, Clayton, Diablo Range, Contra Costa Co., California, USA

Largest Crystal Size: 2.5 mm

Acicular millerite crystal cantilevered across a face of calcite crystals, held in place only on the left end, penetrating a calcite crystal.
Specimen has been Deaccessioned.

Technical details: PS panoramic merge of three seperate stacks, 23 (right), 33 (center), and 28 (left) images, each collected over a 0.75 mm vertical distance, combined with Zerene Stacker Dmap method, corrected with Pmax, Canon 10D, 75-300 mm IS zoom as tube lens at 300 mm f/5.6, Nikon CF Plan 10x/0.30 EPI infinity focused objective lens fitted with a manual iris closed down about 2 stops. Dual flash, second-curtain sync manual exposure at 3 sec. shutter speed, with diffusion. Brightness levels, CA, and stacking artifacts corrected, no other adjustments.

Copyright: © 2012, JGW      Photo ID: 438777     Uploaded by: Jeff Weissman   View Count: 573   Approval status: Public galleries    Type: Photo - 2884 x 800 pixels (2.3 Mpix)

QQJ-CYQCelestine : SrSO4, Gypsum : CaSO4·2H2O

Mönchsberg, Göschwitz, Jena, Thuringia, Germany

Dimensions: 6.5 cm x 6 cm x 3.5 cm

size: 6,5 x 6 x 3,5 cm

Coeletine (blue) in Gypsum
Copyright: © 2011 HGG      Photo ID: 404351     Uploaded by: Sebastian Mueller   View Count: 254   Approval status: Public galleries    Type: Photo - 1684 x 1275 pixels (2.1 Mpix)

GNW-QU9Fluorbritholite-(Ce) : Ca2(Ce,Ca)3(SiO4,PO4)3(F,OH), Allanite-(Ce) : {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH), Feldspar Group, Quartz : SiO2

Multiple photos available
"Cerite" occurrences, Jamestown, Jamestown District, Boulder Co., Colorado, USA

Dimensions: 5 cm x 4.5 cm x 1.5 cm

Lump of fine-granular pinkish-brown Fluorbritholite-(Ce) surrounded by black rim of Allanite-(Ce) in Quartz-Feldspar matrix. During a long time such formations were considered as cerite-(Ce), because of impure material was analyzed by means of "wet chemistry". Analytical data for the mineral are available on the daughter photo.
Associating minerals (mainly small and invisible by unequipped eye) are represented by Uraninite (Th- and Pb-rich variety), Yttrofluorite, Monazite-(Ce), Zircon, bright-yellow films of silicates of U are visible on the bottom side of the specimen. Its size is 5x4.5x1.5 cm and its radioactivity is 65 μR/h.
Collected by Philip Persson in 2011. Pavel M. Kartashov analytical data, collection and photo.
Copyright: © Pavel M. Kartashov      Photo ID: 402434     Uploaded by: Pavel Kartashov   View Count: 925   Approval status: Public galleries    Type: Photo - 1138 x 1022 pixels (1.2 Mpix)

95R-3Y2Actinolite : ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2, Talc : Mg3(Si4O10)(OH)2

Multiple photos available
Vizze pass, San Giacomo, Vizze Valley, Bolzano Province, Trentino-Alto Adige, Italy

meaningful specimen of actinolite crystals up to 14 cm on talc-schist
specimen 25 x 15 cm
(sample found in the first years eighty from historical locality)

Collection Arturo Moro
photo Manuele Moro
Copyright: © Manuele Moro      Photo ID: 374983     Uploaded by: Manuele Moro   View Count: 333   Approval status: Public galleries    Type: Photo - 1024 x 682 pixels (0.7 Mpix)

27K-798Gypsum : CaSO4·2H2O

Gunthorpe Weir, East Bridgford, Nottinghamshire, England, UK

Horizontal Gypsum seam up to 5cm thick in Triassic Gunthorpe Member of Sidmouth Mudstone Formation. Surface section in river cliff beside River Trent at Gunthorpe, Nottinghamshire; on the southeastern bank adjacent to the weir. 8m section of the middle part of the member. Centimetre scale on photo. Photo taken on 8 Feb 2011
Photo ID: 367239     Uploaded by: Tim Colman   View Count: 340   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

KHG-M1EGypsum : CaSO4·2H2O

Gunthorpe Weir, East Bridgford, Nottinghamshire, England, UK

Horizontal gypsum seams in Triassic Gunthorpe Member of the Sidmouth Mudstone Formation Surface section in river cliff beside River Trent at Gunthorpe, Nottinghamshire; on the southeastern bank adjacent to the weir. 8m section of the middle part of the member.
Thickest seam is approximately 5cm thick (centimetre scale in photo).
Photo taken on 8 Feb 2011.
Photo ID: 367238     Uploaded by: Tim Colman   View Count: 336   Approval status: Public galleries    Type: Photo - 3072 x 2304 pixels (7.1 Mpix)

EVF-DY6Brucite : Mg(OH)2, Sturmanite : Ca6(Fe3+,Al,Mn3+)2(SO4)2[B(OH)4](OH)12·25H2O

Wessels Mine, Hotazel, Kalahari manganese field, Northern Cape Province, South Africa

Brucite sphere, 5 mm in diameter, nestled among sturmanite crystals in manganese oxide matrix. Collection and photograph Norman King.
Copyright: © Norman King      Photo ID: 365742     Uploaded by: Norman King   View Count: 499   Approval status: Public galleries    Type: Photo - 782 x 766 pixels (0.6 Mpix)

6EC-820Sanidine : KAlSi3O8

Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

Karlsbad twin embedded in trachyte, field of view 30 mm, , collection C.&H. Schäfer
Copyright: © C.H.M.-Schäfer      Photo ID: 306608     Uploaded by: Christof Schäfer   View Count: 313   Approval status: Public galleries    Type: Photo - 1665 x 1151 pixels (1.9 Mpix)

898-YGGMicrocline (Var: Amazonite) : KAlSi3O8, Albite : NaAlSi3O8

Ploskaya Mt, Western Keivy Massif, Keivy Mountains, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia

Dimensions: 9 cm x 5 cm x 6.5 cm

9x5x6.5 cm chunk of commodity amazonite from Ploskogorskoe deposit. Typical for pegmatitic K-feldspars perthite structure is well visible. White albite pertites grow within marine-green amazonite monograin with very attractive image formation. Collected in 1992. Pavel M. Kartashov photo.
Copyright: © Pavel M. Kartashov      Photo ID: 202399     Uploaded by: Pavel Kartashov   View Count: 734   Approval status: Public galleries    Type: Photo - 1127 x 801 pixels (0.9 Mpix)
Photos 1 to 10 of 17
1 2
Next Page

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 1993-2015, 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: September 5, 2015 15:22:47