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Chalcocite

English

Noun

Chalcocite (uncountable, Mineralogy)


  1. An important ore of copper. Usually a secondary ore formed when primary copper-iron sulphides are oxidized near the surface.
  • Composition: Cuprous sulphide, Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert): Cu_2S


  • Habit: Commonly massive. Crystals are rare, but 60ยบ angles may sometimes be seen within the mass.
  • Physical properties: Hardness 2.5-3; Specific gravity 7.2-7.4; Luster metallic; Color dark lead gray. Becomes coated with a soft brown-black film over time. Moderately sectile .
Science Fair Project Dictionary Index Page
10-26-2009 07:45:12
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Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.

Start by looking for your science kit review or science toy review. Compare prices but remember, Price $ is not everything. Quality does matter.
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