A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green…
Its definition shares important concepts with this word: instrument, containing, combination, colored, glasses.Melanoscope
An instrument containing a combination of colored glasses such that they transmit only red light, so that objects of other colors, as green leaves, appear black when seen through it. It is used for viewing colored flames, to detect the presence of potassium, lithium, etc., by the red light which they emit.
No hand-reviewed synonym set has been published for this word yet.
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