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Glite Dictionary
cobalt bloom

cobalt bloom

9.9
A reddish mineral people use to make blue glass that is found in mine veins
  • noun
  • Specialized
translation icon : bloom de cobalto
  • Glassmakers sought cobalt bloom as a pigment for producing rich blue glass.

Examples

  • Geologists discovered veins rich in cobalt bloom while surveying the old mine.

  • The striking color of cobalt bloom makes it a popular specimen for mineral collectors.

  • The cobalt bloom was discovered in a remote mine.

  • Many artists use cobalt bloom to achieve vibrant colors.

  • Glassmakers sought cobalt bloom as a pigment for producing rich blue glass.

  • The striking color of cobalt bloom makes it a popular specimen for mineral collectors.

  • Geologists discovered veins rich in cobalt bloom while surveying the old mine.

Synonyms

erythrite
vscobalt bloom
  • Specialized
9.9

A reddish mineral that forms bright pink crystals used to color glass

notes it is usually found in veins rich in cobalt and arsenic

Surface Forms

cobalt bloom singular
cobalt blooms plural

Morphology

cobalt + bloom

The compound is compositionally motivated: a learner who knows 'cobalt' (the metal) and 'bloom' (a deposit or surface residue) can plausibly infer it refers to a cobalt-related deposit or residue. However, the entry denotes a specific, technical mineral (hydrated cobalt arsenate with crystalline and reddish properties) that goes beyond the simple depositional sense, so the exact mineral identity and properties are not fully predictable to a B1 learner.

Etymology

Cobalt bloom may come from miners who saw bright, red patches of crystals growing on the rock and thought of bloom as a small 'flower'. Because the mineral contains cobalt and was used to give deep blue color to glass, the name came to mean this reddish cobalt mineral used for color.