Cotectic

{
  "id": "MLC-T-CHM-002619",
  "term": "Cotectic",
  "field": "Chemistry",
  "definition": "A line on a ternary phase diagram, or the matching set of pressure, temperature and composition conditions, along which a cooling liquid deposits at least two solids side by side. Along the line the liquid composition shifts and the temperature falls, unlike a eutectic point, which is invariant. A basaltic magma depositing olivine and plagioclase together follows such a line.",
  "subject": "Inorganic Chemistry",
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 580 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/cotectic/"
}