Eudidymite and epididymite from the Ilímaussaq alkaline intrusion, South Greenland.
Read Online

Eudidymite and epididymite from the Ilímaussaq alkaline intrusion, South Greenland. by Semenov, E. I.

  • 509 Want to read
  • ·
  • 30 Currently reading

Published by C. A. Reitzel in København .
Written in English



  • Greenland, South.


  • Eudidymite -- Greenland, South.,
  • Epididymite -- Greenland, South.

Book details:

Edition Notes

StatementBy E. I. Semenov and H. Sørensen.
SeriesContribution to the mineralogy of Ilímaussaq,, no. 2., Meddelelser om Grønland, udgivne af Kommissionen for videnskabelige undersøgelser i Grønland, bd. 181, nr. 2, Meddelelser om Grønland ;, bd. 181, nr. 2.
ContributionsSørensen, Henning, joint author., Grønlands geologiske undersøgelse.
LC ClassificationsQ115 .D39 bd. 181, nr. 2
The Physical Object
Pagination22 p.
Number of Pages22
ID Numbers
Open LibraryOL5764696M
LC Control Number71357079

Download Eudidymite and epididymite from the Ilímaussaq alkaline intrusion, South Greenland.


Epididymite definition is - a silicate NaBeSi3O7(OH) of sodium and beryllium. Epididymite NaBeSi3O7(OH) °c Mineral Data Publishing, version Crystal Data: Orthorhombic. Point Group: 2=m 2=m 2=m: As pseudohexagonal crystals, tabular on fg, also elongated along [], to 6 cm. Micaceous, spherulitic, ¯ne to coarse. Eudidymite NaBeSi3O7(OH) °c Mineral Data Publishing, version Crystal Data: Monoclinic. Point Group: 2=m: Crystals tabular on fg, to 5 cm, commonly twinned, intergrown in fanlike aggregates. Spherulitic, micaceous, coarse and ¯ne granular, massive. Twinning: On fg, simple twins, common, may be polysynthetic. The epididymis -- a long, coiled tube at the back of each testicle -- can get inflamed. That’s called epididymitis. Learn what causes it, the symptoms, and how it’s treated.

The original description of eudidymite was given by Brøgger () on specimens from Norway, whereas the first descrip-tion of epididymite was given by Flink () on specimens from Greenland (presumably from the Narssârssuk pegmatite). Epididymite and eudidymite have been found in many locali-ties worldwide.   Epididymitis is an inflammation of the epididymis, a tube located at the back of the testicles. Learn about epididymitis symptoms, diagnosis, and treatment. The dispersion images of epididymite from Ilimaussaq and epididymite from Narssdrssuk (Flink's material) are completely identical. The acute bisectrix is perpendicular to (). The axial angle 2V" varies from 26" ++" in red light where the axial plane is parallel to (), over 0o in bluish violet ( A; to 16'+ |o in the deepest violet, the. The existence of a dimorphism between epididymite and eudidymite was established in and the crystal-chemical formula of H 2 O-containing epididymite was proposed. However, many authors continued to use the formulae with OH-groups until [ 79 ] due to the unusually high dehydration temperature (– °C according [ 73 ]).

Epididymitis is inflammation (swelling and irritation) of the epididymis, a tube at the back of the testicle that carries sperm. This swelling can cause intense pain in the testicle. Magmatism in the Gardar Province, South Greenland, is related to two main rifting events at Ma and to Ma. Little is known about the duration of the magmatic activity in a specific.   It is shown that fluorite-leucophane-melinophane-eudidymite ores were formed by alkaline high-F low-salt ( wt.% NaCl equiv) solutions with a relatively low content of Be ( g/kg of solution). Fluorite and beryllium minerals were deposited in ores in a wide range of P-T conditions. The early fluorite-phenakite paragenesis. A new type of silicate liquid immiscibility macroscopically visible in Proterozoic peralkaline rocks from Ilimaussaq, South Greenland July Contributions to Mineralogy and Petrology (4)