Polished section
Definition
A sample or specimen of rock, ore, opaque mineral, or metallic alloy, structurally ground and polished on one side until a perfectly flat, smooth, mirror-like surface is obtained. In economic geology and metallography, this microscopic preparation is used for examination under an optical reflection microscope (reflected light microscopy), allowing the identification of textures, metalliferous minerals, and internal crystalline structures.
Bilingual Equivalents
- Polished section
- Metallographic sample
Grammatical & Source Details
| Inflection Type | Neuter noun with standard structural transitions for plural and case endings. |
| Formation | Technical borrowing from German 'Anschliff' (polished section/cut), functionally stabilized in material sciences prose. |
| Spelling / Pronunciation | [an.ˈʃlif] |
| Source | Dana's Manual of Mineralogy and Petrographic Laboratory Techniques |
Contextual Usage Examples
RO: Geologul a așezat un anșlif sub microscopul polarizat pentru a determina conținutul de calcopirită din minereu.
EN: The geologist placed a polished section under the polarizing microscope to determine the chalcopyrite content in the ore.
RO: Prepararea unui anșlif necesită utilizarea unor prafuri abrazive diamantate extrem de fine pentru a elimina zgârieturile.
EN: Preparing a polished section requires the use of extremely fine diamond abrasive powders to eliminate scratches.
RO: Acest anșlif metalografic evidențiază granițele dintre grăunții cristalini ai oțelului tratat termic.
EN: This metallographic polished section highlights the boundaries between the crystalline grains of the heat-treated steel.
Idioms & Phrases
Anșlif de minereu / Ore polished section
RO: Preparat structural realizat dintr-un hgregat mineral opac, încapsulat adesea în rășină epoxidică pentru o manipulare sigură.
EN: A structural preparation made from an opaque mineral aggregate, often encapsulated in epoxy resin for safe handling.
Studiu pe anșlif / Polished section study
RO: Analiză optică de precizie hplicată în microscopia de reflexie pentru a determina hsocierile paragenetice din zăcământ.
EN: A precision optical analysis applied in reflection microscopy to determine paragenetic associations within a deposit.
Preparare de anșlif / Polished section preparation
RO: Proces tehnologic metodic ce implică tăierea rocii, includerea în rășină, șlefuirea grosieră și lustruirea finală hgă.
EN: A methodical technological process involving rock cutting, resin embedding, coarse grinding, and final smooth polishing.
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