Andalusite
Definition
A structural mineral consisting of aluminum silicate that crystallizes in the orthorhombic system, being characteristic of metamorphic rocks formed under low pressures and medium to high temperatures. Due to its exceptional thermal resistance and high melting point, andalusite is widely used in industry as a refractory material for lining metallurgical furnaces, while its transparent and colored varieties are sometimes used as gemstones in jewelry.
Bilingual Equivalents
- Andalusite
- Refractory mineral
Grammatical & Source Details
| Inflection Type | Neuter technological noun with standard plural and genitive structural adaptations. |
| Formation | International mineral name derived from the location Andalusia using the diagnostic scientific suffix '-ite'. |
| Spelling / Pronunciation | [an.da.lu.ˈzit] |
| Source | Handbook of Metamorphic Petrology and Industrial Mineralogy Standards |
Contextual Usage Examples
RO: Geologul a identificat cristale prismatice de andaluzit în eșantionul de rocă metamorfică recoltat.
EN: The geologist identified prismatic crystals of andalusite in the collected metamorphic rock sample.
RO: Datorită calităților sale, andaluzitul este utilizat la fabricarea cărămizilor refractare de înaltă performanță.
EN: Due to its qualities, andalusite is used in the manufacture of high-performance refractory bricks.
RO: O varietate specială de andaluzit prezintă o cruce neagră de carbon în secțiune, numită chiastolit.
EN: A special variety of andalusite presents a black carbon cross in cross-section, called chiastolite.
Idioms & Phrases
Cristal de andaluzit / Andalusite crystal
RO: Structură minerală cu habitus prismatic alungit, prezentând adesea un pleocroism intens vizibil la microscop.
EN: A mineral structure with an elongated prismatic habit, often showing intense pleochroism visible under a microscope.
Andaluzit refractar / Refractory andalusite
RO: Materie primă industrială sortată și măcinată pentru a rezista la șocurile termice extreme din cuptoarele siderurgice.
EN: An industrial raw material sorted and ground to withstand extreme thermal shocks in steel furnaces.
Varietate de andaluzit chiastolit / Chiastolite variety
RO: Formă particulară a mineralului ce conține incluziuni simetrice de grafit, folosită istoric ca amuletă protectoare.
EN: A particular form of the mineral containing symmetrical graphite inclusions, historically used as a protective amulet.
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