Aragonite
Definition
A mineral from the natural carbonate class, representing an unstable crystalline form of calcium carbonate and a high-pressure polymorph of calcite. It crystallizes in the orthorhombic system, frequently forming long prismatic crystals, acicular aggregates, or specific encrustations such as flos ferri, and constitutes the primary mineral component making up the nacre of mollusk shells and fine pearls.
Bilingual Equivalents
- Aragonite
- Flos ferri
Grammatical & Source Details
| Inflection Type | Neuter noun, regular plural forms and standard masculine/neuter genitive structural updates. |
| Formation | Mineralogical eponym coined from the Spanish toponym Aragon, specifically from the Molina de Aragón region where type specimens were collected. |
| Spelling / Pronunciation | [əˈræɡənaɪt] |
| Source | Lexicon of Systematic Mineralogy, Crystalline Physics, and Speleology Standards |
Contextual Usage Examples
RO: Speologii au descoperit în această galerie adâncă cristale splendide de aragonit alb aranjate sub formă de ace fine.
EN: Speleologists discovered splendid white aragonite crystals arranged in the shape of fine needles within this deep gallery.
RO: Deoarece este mai solubil decât calcitul, acest aragonit se transformă treptat în timp în polimorful său mai stabil prin recristalizare.
EN: Because it is more soluble than calcite, this aragonite gradually transforms over time into its more stable polymorph through recrystallization.
RO: Analiza cu raze X a confirmat prezența unui strat dens de aragonit pe pereții interiori ai cochiliei analizate.
EN: The X-ray analysis confirmed the presence of a dense layer of aragonite on the interior walls of the analyzed shell.
Idioms & Phrases
Cristale de aragonit / Aragonite crystals / prismatic aragonite
RO: Formațiunile geometrice specifice caracterizate prin simetrie ortorombică, macle pseudohexagonale și un luciu sticlos clar.
EN: The specific geometric formations characterized by orthorhombic symmetry, pseudohexagonal twinning, and a clear vitreous luster.
Aragonit coraloid / Flos ferri / coralloidal aragonite
RO: Varietate spectaculoasă de mineral care se dezvoltă în peșteri sub forma unor ramificații sinuoase albicioase ce amintesc de corali.
EN: A spectacular variety of the mineral that develops in caves as sinuous whitish branches reminiscent of corals.
Transformarea aragonitului / Aragonite inversion / aragonite-calcite transition
RO: Procesul termodinamic și geologic prin care structura ortorombică se reorganizează în sistemul trigonal al calcitului stabil.
EN: The thermodynamic and geological process through which the orthorhombic structure reorganizes into the trigonal system of stable calcite.
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