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15 points
NEPHELITES is validvalid
NEPHELITE, [n]
NEPHELITE, a rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms, also NEPHELINE [n]
NEPHELITE, [n]
NEPHELITE, a rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms, also NEPHELINE [n]