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POLYSYNTHETIC TWIN [2 records]
Record 1 - internal organization data 1998-03-12
Record 1, English
Record 1, Subject field(s)
- Mineralogy
Record 1, Main entry term, English
- albite twin
1, record 1, English, albite%20twin
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
If the regions are related such that they share a common c direction, the twin plane being the old mirror plane of the monoclinic structure, the twin is termed an albite twin. 2, record 1, English, - albite%20twin
Record number: 1, Textual support number: 2 CONT
Albite twin. The plagioclase feldspars, particularly albite..., are frequently twinned on the albite law... where the twin-plane and composition plane is(010). This twinning is often repeated to give a series of five lamellae, seen in the hand specimens as striations... ;such twinning is usually called "polysynthetic" or "lamellar" twinning. 3, record 1, English, - albite%20twin
Record 1, French
Record 1, Domaine(s)
- Minéralogie
Record 1, Main entry term, French
- macle de l'albite
1, record 1, French, macle%20de%20l%27albite
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La macle de l'albite, dite encore polysynthétique, donne en lumière polarisée une alternance de bandes claires et foncées. 1, record 1, French, - macle%20de%20l%27albite
Record number: 1, Textual support number: 1 OBS
macle : Assemblage régulier de deux ou plusieurs individus cristallins de même nature. [...] Ces macles sont très fréquentes dans les minéraux (ex. gypse, quartz, pyrite, aragonite, rutile, albite, péricline, fluorite, or, etc.). 2, record 1, French, - macle%20de%20l%27albite
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1997-08-01
Record 2, English
Record 2, Subject field(s)
- Mineralogy
Record 2, Main entry term, English
- polysynthetic twin
1, record 2, English, polysynthetic%20twin
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
If all the successive composition surfaces are parallel, the resulting group is a "polysynthetic twin".... 2, record 2, English, - polysynthetic%20twin
Record 2, French
Record 2, Domaine(s)
- Minéralogie
Record 2, Main entry term, French
- macle polysynthétique
1, record 2, French, macle%20polysynth%C3%A9tique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
[...] dans le cas des feldspaths plagioclases, où l'on a une série d'individus qui se répètent identiques à eux-mêmes une fois sur deux; dans ce cas plus précis, on pourra parler de macles polysynthétiques. 2, record 2, French, - macle%20polysynth%C3%A9tique
Record 2, Spanish
Record 2, Textual support, Spanish
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