Saturday, October 27, 2012

CRYSTALS AND MINERALS

Crystal Lab



In September we did crystal lab. In that lab we grew crystals using epsomite and sugar. We used water some scientific cups and minerals. We put tiny minerals in the cup and mixed it with water. We did this until it stopped dissolving. Then we attached paper clip to the pencil using rope.After that we waited until it grew crystals on it. Some grew faster and some took slower process. 

















Metallic Luster: It looks like a metal 


















Non Metallic Luster: It's a mineral that doesn't look like mineral. 
























Streak: Color that left from the rock after scratching.















Cleavage: Rock that is broken evenly 
















Fracture: Rock that is broken unevenly 
















Composition: Chemical that made mineral















Color: Appearance of a rock 
















Hardness: If the rock is soft or hard, we know it by scratching it on glass. 

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