TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
TWINNED CRYSTAL [9 records]
Record 1 - internal organization data 2011-07-28
Record 1, English
Record 1, Subject field(s)
- Mineralogy
Record 1, Main entry term, English
- macled
1, record 1, English, macled
correct, adjective
Record 1, Abbreviations, English
Record 1, Synonyms, English
- twinned 1, record 1, English, twinned
correct, adjective
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Said of a crystal characterized by a twin structure. 1, record 1, English, - macled
Record number: 1, Textual support number: 1 CONT
twinned crystal. 2, record 1, English, - macled
Record 1, French
Record 1, Domaine(s)
- Minéralogie
Record 1, Main entry term, French
- maclé
1, record 1, French, macl%C3%A9
correct, adjective
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Se dit d'un édifice cristallin présentant le caractère de macle. 2, record 1, French, - macl%C3%A9
Record number: 1, Textual support number: 1 CONT
cristal maclé. 3, record 1, French, - macl%C3%A9
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Mineralogía
Record 1, Main entry term, Spanish
- maclado
1, record 1, Spanish, maclado
correct
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Dícese de los minerales que forman maclas, entre los cuales figuran, además del yeso y del aragonito [...], el anfíbol, la calcita, la pirita, etc. 1, record 1, Spanish, - maclado
Record 2 - internal organization data 2004-12-22
Record 2, English
Record 2, Subject field(s)
- Mineralogy
Record 2, Main entry term, English
- contact twin
1, record 2, English, contact%20twin
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- juxtaposition twin 2, record 2, English, juxtaposition%20twin
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A twinned crystal, the two individuals of which are symmetrically arranged about a twin plane. 2, record 2, English, - contact%20twin
Record 2, French
Record 2, Domaine(s)
- Minéralogie
Record 2, Main entry term, French
- macle de juxtaposition
1, record 2, French, macle%20de%20juxtaposition
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- macle d'accolement 2, record 2, French, macle%20d%27accolement
correct, feminine noun
- macle par accolement 3, record 2, French, macle%20par%20accolement
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Lorsque les deux individus sont accolés l'un à l'autre, on dira qu'il y a macle de juxtaposition ou d'accolement [...] 1, record 2, French, - macle%20de%20juxtaposition
Record number: 2, Textual support number: 2 CONT
Macles par accolement dues à la juxtaposition apparente de deux cristaux suivant un plan. [...] On reconnaît ces macles par accolement à la présence d'un angle rentrant. 3, record 2, French, - macle%20de%20juxtaposition
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Mineralogía
Record 2, Main entry term, Spanish
- macla por yuxtaposición
1, record 2, Spanish, macla%20por%20yuxtaposici%C3%B3n
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 CONT
En las maclas por yuxtaposición los cristales están adosados [...] 1, record 2, Spanish, - macla%20por%20yuxtaposici%C3%B3n
Record 3 - internal organization data 2004-12-15
Record 3, English
Record 3, Subject field(s)
- Mineralogy
Record 3, Main entry term, English
- twin
1, record 3, English, twin
correct, noun
Record 3, Abbreviations, English
Record 3, Synonyms, English
- twin crystal 2, record 3, English, twin%20crystal
correct
- twinned crystal 2, record 3, English, twinned%20crystal
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
[An] intergrowth of two or more single crystals of the same mineral in a mathematically describable manner, so that some lattices are parallel whereas others are in reversed position. 2, record 3, English, - twin
Record 3, French
Record 3, Domaine(s)
- Minéralogie
Record 3, Main entry term, French
- macle
1, record 3, French, macle
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les cristaux présentent entre eux des orientations variées, ou des aspects nouveaux qui paraissent être dus à l'accolement ou à l'interpénétration de deux cristaux identiques. Ces aspects nouveaux s'appellent macles. 2, record 3, French, - macle
Record number: 3, Textual support number: 2 CONT
La nature des cristaux [de ciment] formés et leur faculté de s'assembler en macles [...] ont une importance capitale au point de vue de la valeur des bétons. 3, record 3, French, - macle
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Mineralogía
Record 3, Main entry term, Spanish
- macla
1, record 3, Spanish, macla
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Conjunto formado por dos o más cristales que han crecido unidos, dispuestos simétricamente respecto a una cara común [...] 1, record 3, Spanish, - macla
Record 4 - internal organization data 2004-05-19
Record 4, English
Record 4, Subject field(s)
- Gemmology
- Diamond Industry
Record 4, Main entry term, English
- seam line
1, record 4, English, seam%20line
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The line along which twinned crystal is formed. 2, record 4, English, - seam%20line
Record 4, French
Record 4, Domaine(s)
- Gemmologie
- Industrie diamantaire
Record 4, Main entry term, French
- surface d'accolement
1, record 4, French, surface%20d%27accolement
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Plan de jonction de cristaux maclés. 2, record 4, French, - surface%20d%27accolement
Record number: 4, Textual support number: 1 CONT
La surface d'accolement des individus peut être un plan ou une surface quelconque. 3, record 4, French, - surface%20d%27accolement
Record number: 4, Textual support number: 1 OBS
macle : Pierre résultant de l'accolement ou de l'interpénétration d'un cristal ou de plusieurs cristaux de même espèce sous une orientation cristalline différente. 4, record 4, French, - surface%20d%27accolement
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2004-05-17
Record 5, English
Record 5, Subject field(s)
- Gemmology
- Diamond Industry
Record 5, Main entry term, English
- twinned crystal
1, record 5, English, twinned%20crystal
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- twinning 2, record 5, English, twinning
- compound crystal 3, record 5, English, compound%20crystal
- twin crystal 4, record 5, English, twin%20crystal
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
A characteristic of some rough diamonds; two crystals that are bonded along a seam and rotated 60° to one another; inclusions are normally trapped along the seam; also referred to as twinning. 5, record 5, English, - twinned%20crystal
Record number: 5, Textual support number: 1 CONT
Crystal distorted at the atomic level early in its growth as a result of changes in the orientation of atoms; as atoms continue to attach themselves to the re-oriented segment, another crystal begins to form, intergrown with the first. Twin crystals can be made up of two or more such intergrown crystals holding planes of atoms in common. 6, record 5, English, - twinned%20crystal
Record number: 5, Textual support number: 2 CONT
Seam line along which twinned crystal is formed. 5, record 5, English, - twinned%20crystal
Record 5, French
Record 5, Domaine(s)
- Gemmologie
- Industrie diamantaire
Record 5, Main entry term, French
- cristal maclé
1, record 5, French, cristal%20macl%C3%A9
masculine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Jonction le long de laquelle le cristal maclé est formé. 2, record 5, French, - cristal%20macl%C3%A9
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 2003-07-08
Record 6, English
Record 6, Subject field(s)
- Mineralogy
Record 6, Main entry term, English
- Baveno twin
1, record 6, English, Baveno%20twin
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
A twinned crystal, a common form of orthoclase, in which the twinning plane is the clinodome, the resulting form having a nearly square cross section. 2, record 6, English, - Baveno%20twin
Record 6, French
Record 6, Domaine(s)
- Minéralogie
Record 6, Main entry term, French
- macle de Baveno
1, record 6, French, macle%20de%20Baveno
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Macle rare de l'orthoclase surtout [dont] le plan [...] est parallèle aux faces cristallines (021) et la section [...] presque carrée. 2, record 6, French, - macle%20de%20Baveno
Record number: 6, Textual support number: 1 CONT
Sans la macle de Baveno, on a deux individus accolés (macle par accolement) selon un plan parallèle à une face [...] 3, record 6, French, - macle%20de%20Baveno
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1999-10-01
Record 7, English
Record 7, Subject field(s)
- Mineralogy
Record 7, Main entry term, English
- Carlsbad twin
1, record 7, English, Carlsbad%20twin
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
- Karlsbad twin 1, record 7, English, Karlsbad%20twin
correct
Record 7, Textual support, English
Record number: 7, Textual support number: 1 DEF
A twinned crystal in which the twinning axis is the c axis, the operation is a rotation of 180 degrees, and the contact surface is parallel to the side pinacoid; common in the alkali feldspars. 1, record 7, English, - Carlsbad%20twin
Record 7, French
Record 7, Domaine(s)
- Minéralogie
Record 7, Main entry term, French
- macle de Carlsbad
1, record 7, French, macle%20de%20Carlsbad
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 CONT
Les feldspaths alcalins [...] forment des cristaux [...] réguliers présentant la macle de Carlsbad : le cristal est alternativement brillant et terne par moitié, suivant l'éclairage. 2, record 7, French, - macle%20de%20Carlsbad
Record number: 7, Textual support number: 2 CONT
L'orthose est parfois un minéral qui paraît être dû à l'apparente interpénétration de 2 cristaux monocliniques orientés à 180° l'un par rapport à l'autre, c'est la macle de Carlsbad [...] 3, record 7, French, - macle%20de%20Carlsbad
Record number: 7, Textual support number: 3 CONT
Les orthoses sont souvent maclées; parmi les plus courantes nous pourrons signaler la macle de Carlsbad [...] c'est une macle par pénétration. 4, record 7, French, - macle%20de%20Carlsbad
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1999-03-10
Record 8, English
Record 8, Subject field(s)
- Mineralogy
Record 8, Main entry term, English
- geniculate twin
1, record 8, English, geniculate%20twin
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
- geniculated twin 2, record 8, English, geniculated%20twin
correct
- geniculating twin 3, record 8, English, geniculating%20twin
- knee twin 4, record 8, English, knee%20twin
correct
- knee-shaped twin 3, record 8, English, knee%2Dshaped%20twin
- elbow twin 5, record 8, English, elbow%20twin
Record 8, Textual support, English
Record number: 8, Textual support number: 1 DEF
A type of crystal twin that bends abruptly, e. g. crystals of rutile that are twinned on the second-order pyramid(101). 5, record 8, English, - geniculate%20twin
Record number: 8, Textual support number: 1 CONT
Rutile. ... Black to reddish-brown adamantine crystals may be recognized by their striated prisms or geniculated twins. 2, record 8, English, - geniculate%20twin
Record 8, French
Record 8, Domaine(s)
- Minéralogie
Record 8, Main entry term, French
- macle en genou
1, record 8, French, macle%20en%20genou
correct, feminine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Rutile (masc.).- [...] La macle dite «en genou» est fréquente. 2, record 8, French, - macle%20en%20genou
Record 8, Spanish
Record 8, Textual support, Spanish
Record 9 - internal organization data 1977-01-26
Record 9, English
Record 9, Subject field(s)
- Mineralogy
Record 9, Main entry term, English
- multiple twin
1, record 9, English, multiple%20twin
correct
Record 9, Abbreviations, English
Record 9, Synonyms, English
- repeated twin 2, record 9, English, repeated%20twin
correct
Record 9, Textual support, English
Record number: 9, Textual support number: 1 OBS
A twinned crystal that is formed by "repeated twinning". 3, record 9, English, - multiple%20twin
Record 9, French
Record 9, Domaine(s)
- Minéralogie
Record 9, Main entry term, French
- macle multiple
1, record 9, French, macle%20multiple
correct
Record 9, Abbreviations, French
Record 9, Synonyms, French
Record 9, Textual support, French
Record number: 9, Textual support number: 1 OBS
Les macles peuvent être multiples, en ce sens qu'un nombre élevé d'individus rentrent dans la combinaison. 1, record 9, French, - macle%20multiple
Record 9, Spanish
Record 9, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.
- Date Modified: