Pyramids and prisms
Crossword Clue

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AnswerCrossword Clue
SOLIDSPyramids and prisms
SOLIDSPyramids, prisms, et al.
SOLIDSCones and prisms
nephelinea rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms also NEPHELITE
nicolsone of a pair of prisms used to produce and analyze plane-polarized light in a polarizing microscope
nicolone of a pair of prisms used to produce and analyze plane-polarized light in a polarizing microscope
nephelitea rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms also NEPHELINE
nephelitesNEPHELITE, a rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms also NEPHELINE
nephelinesNEPHELINE, a rock-forming mineral, silicate of sodium, potassium and aluminium, colourless, usually crystallizing in hexagonal prisms also NEPHELITE
apophylliteA mineral occurring typically as white glassy prisms, usually as a secondary mineral in volcanic rocks. It is a hydrated silicate and fluoride of calcium and potassium
binocleoptical device, providing good depth effect, for use with both eyes, consisting of two small telescopes fitted together side by side, each telescope having two prisms between the eyepiece and objective for erecting the image
binoclesoptical device, providing good depth effect, for use with both eyes, consisting of two small telescopes fitted together side by side, each telescope having two prisms between the eyepiece and objective for erecting the image
beryla mineral consisting of a silicate of beryllium and aluminum of great hardness that occurs in colorless hexagonal prisms when pure and in various colors (as green, blue, yellow, or pink) when not pure, that is valued as a source of gems, and that is the principal source of beryllium