Almandine
Definition
A silicate mineral representing the most widespread and common species of the garnet group, featuring a characteristic deep red, purplish-red, reddish-brown, or black color, containing iron and aluminum. It crystallizes in the cubic system, has a vitreous luster, and high hardness (7-7.5 on the Mohs scale), with its transparent varieties utilized since antiquity as semi-precious gemstones in jewelry and opaque ones as industrial abrasives.
Bilingual Equivalents
- Almandine
- Almandine garnet
Grammatical & Source Details
| Inflection Type | Common singular or plural noun stable across standard syntactic structures. |
| Formation | Loanword from French (almanline), historically traceably rooted in the ancient city name of Alabanda in Caria, famous for trading red stones. |
| Spelling / Pronunciation | [ˈælməndɪn] / [ˈælməndaɪn] |
| Source | Encyclopedia of Mineralogy and International Mineralogical Association Index |
Contextual Usage Examples
RO: Inelul vechi din argint descoperit la săpături era decorat cu un cristal șlefuit de almandin de o culoare sângerie.
EN: The old silver ring discovered at the excavations was decorated with a polished almandine crystal of a blood-red color.
RO: Geologii au identificat cristale dodecaedrice mari de almandin prinse în masa de șisturi muntoase metamorfice.
EN: Geologists identified large dodecahedral almandine crystals embedded within the mass of metamorphic mountain schists.
RO: Praful obținut prin măcinarea de almandin opac este folosit în fabricarea discurilor abrazive de înaltă rezistență.
EN: The powder obtained by grinding opaque almandine is used in manufacturing high-resistance abrasive discs.
Idioms & Phrases
Cristal de almandin / Almandine crystal
RO: Formă geometrică de dezvoltare a mineralului, adesea sub formă de trapezoedru sau dodecaedru, cu fețe netede.
EN: Geometric growth form of the mineral, typically as a trapezohedron or dodecahedron, with smooth faces.
Almandin fațetat / Faceted almandine
RO: Piatră nestemată prelucrată prin tăiere în unghiuri specifice de către bijutieri pentru a-i maximiza reflexia luminii.
EN: A gemstone processed by cutting into specific angles by jewelers to maximize its light reflection.
Șist cu almandin / Almandine schist
RO: Rocă metamorfică regională caracterizată prin prezența proeminentă a nodulilor de granat roșu pe fondul foliației minerale.
EN: A regional metamorphic rock characterized by the prominent presence of red garnet nodules against the background mineral foliation.
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