Allotriomorphic

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adjective (geology / mineralogy / crystallography)

Definition

Relating to minerals or crystalline components of an igneous rock: not presenting its own geometric faces or a regular native external shape, because its structural development was limited and constrained by the free spaces remaining between crystals formed earlier during magma solidification.

Bilingual Equivalents

  • Allotriomorphic
  • Anhedral

Grammatical & Source Details

Inflection Type Variable adjective with standard gender and number morphological inflections for structural geological descriptions.
Formation Neoclassical scientific compound combining the prefix 'allotrio-' (foreign/constrained) with the shape suffix '-morphic'.
Spelling / Pronunciation [ə.ˌlɒ.tri.oʊ.ˈmɔːr.fɪk]
Source International Mineralogical Association Classification Guide and Igneous Petrology Handbook

Contextual Usage Examples

RO: În secțiunea transparentă analizată la microscop, cuarțul apărea ca un agregat alotriomorf umplând golurile dintre feldspați.

EN: In the thin section analyzed under the microscope, quartz appeared as an allotriomorphic aggregate filling the voids between feldspars.

RO: Structura alotriomorfă a granitului este rezultatul unei răciri rapide a topiturii în ultimele faze ale cristalizării.

EN: The allotriomorphic structure of the granite is the result of a rapid cooling of the melt during the final phases of crystallization.

RO: Un mineral alotriomorf își păstrează rețeaua atomică internă intactă, în ciuda aspectului exterior neregulat.

EN: An allotriomorphic mineral retains its internal atomic lattice intact, despite its irregular outer appearance.

Idioms & Phrases

Cristal alotriomorf / Allotriomorphic crystal

RO: Granulă minerală (anhedrală) care s-a dezvoltat fără restricții interne, dar a cărei formă exterioară reflectă conturul spațiului disponibil.

EN: A mineral grain (anhedral) that developed without internal restrictions, but whose outer shape reflects the contour of the available space.

Structură alotriomorf-granulară / Allotriomorphic-granular texture

RO: Configurație petrografică structurală în care majoritatea componentelor minerale din rocă sunt lipsite de fețe cristaline geometrice.

EN: A structural petrographic configuration where most of the mineral components within the rock lack geometric crystal faces.

Agregat alotriomorf masiv / Massive allotriomorphic aggregate

RO: Acumulare compactă de minerale întrepătrunse, specifică filoanelor hidrotermale unde spațiul de cristalizare a fost limitat.

EN: A compact accumulation of interlocking minerals, specific to hydrothermal veins where crystallization space was limited.

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