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It's a Little Gem!
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Actually, it's a set of (36) different little polished gemstones and minerals from around the world, all identical sizes (1/2" x 3/8" x 1/8" thick), mounted and identified by name and origin on an 8" x 10" card. Super nice at a super price, for teachers, designers or jewelry makers. The set includes amazonite, amethyst, aventurine, black obsidian, blue lace agate, buttermilk jasper, carnelian, Dalmatian dacite, dumortierite, fancy jasper, fluorite, gold stone, hematite, howlite, jadeite, lapis, leopard skin jasper, mahogany,obsidian, moss agate, nephrite, Picasso jasper, orange calcite, picture jasper, rainbow jasper, rose quartz, rhodonite, rock crystal, rhyolite, red jasper, snowflake obsidian, sodalite, serpentine, tiger eye stone, turquoise and unakite.
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92883 SAMPLE GEMSTONE |
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Whirlaway
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Teach the children how the wind can create electricity with this Savonius windmill generator kit. Whozit? Glad you asked: this vertical-axis wind turbine generator was perfected in 1922 by Sigurd J. Savonius, the Finn with the Wind. The airfoils (scoops, really) are like two offset vertical halves of a can. The finished windmill model is 7-5/8" tall x 6" square and comes with plastic airfoils, a wooden frame, (4) pre-wound coils, magnets and a bipolar LED so you can see the power being generated. Easy assembly with a screwdriver, pliers and a touch of glue. For ages 8-100, for science fairs, home schooling, or green fun!
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94328 SAVONIUS WINDMILL GENERATOR KIT |
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