Formula: Na2Ca(CO3)2
Origin of name: for J. Nyerere, President of Tanzania
Crystal system: orthorhombic, pseudohexagonal
Crystal class: mm2
Twinning:
Unit cell:
Colour: colourless
Diaphaneity:
Luster:
Habit: crystals tabular, twinned
Hardness:
Specific gravity: 2.54
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments: dimorphous with zemkorite
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