Streak plate

streak plate

An unglazed piece of porcelain, such as a tile, used to test the characteristic streak of minerals by rubbing the mineral across the tile. Streak plates have a hardness of about 6.5 on the Mohs scale and cannot be used for testing harder minerals.

See streak.


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    adjective, streakier, streakiest. 1. occurring in streaks or a streak. 2. marked with or characterized by streaks. 3. varying or uneven in quality. adjective streakier, streakiest 1. marked with streaks 2. occurring in streaks 3. (of bacon) having alternate layers of meat and fat 4. of varying or uneven quality

  • Stream

    noun 1. a body of water flowing in a channel or watercourse, as a river, rivulet, or brook. Synonyms: rill, run, streamlet, runnel. 2. a steady current in water, as in a river or the ocean: to row against the stream; the Gulf Stream. Synonyms: flow, tide. 3. any flow of water or other liquid […]

  • Streambed

    noun 1. the channel in which a stream flows or formerly flowed.

  • Streamer

    noun 1. something that streams: streamers of flame. 2. a long, narrow flag or pennant. 3. a long, flowing ribbon, feather, or the like used for ornament, as in dress. 4. any long, narrow piece or thing, as a spray of a plant or a strip of cloud. 5. a stream of light, especially one […]

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