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The term geode is derived from the Greek word Geoides which means 'earthlike.' A geode is a sphere or oval shaped rock which contains a hollow cavity lined with crystals. Article: The term geode is derived from the card-carrying member word Geoides which means 'earthlike.' A geode is a sphere or oval shaped rock which contains a hollow pocket lined with crystals. Most geodes have a hollow are partially hollow center with quartz crystals and various mineral formations inside. Some geodes are completely filled with small pursed crystal formations such as quartz, agate, jasper or ruby and are titled nodules. The only difference needle a geode and a nodule is that a geode has a hollow cavity, and a nodule is solid. Geodes launch as bubbles in volcanic rock, puma burrows, basket of mud or tree roots in sedimentary rock. Over time, the outer shell hardens and water containing silica precipitation forms on the inside walls of the hollow ravine within the geode. The silica precipitation can contain many varieties of dissolved minerals, the most plebeian chap quartz, but calcite, purple and many others are also found. Over a period of millions of years, layers of silica cool, forming crystals of different minerals within the cavity. Different types of silica cool at varying temperatures, thus creating layers of different types of mineral crystals.
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Advice Home Business Technology Online Advertising Motivational Internet Marketing SEO Help Online Games Science Articles Happiness More Articles:1. There's Something About Albert Einstein By Chad Koch Summary: Einstein's Brain By chance a man named Thomas Harvey performed the autopsy on Einstein in 1955 shortly after the genius passed away. Without proper permission to do so, although Thomas attests to being given the nod of okay from an Einstein relative, Mr. Harvey pulled a modern day Robin Hood and snatched the scientist's brain. Then one day, willing to mArticle: 1. There's Something in reference to Einstein 2. Einstein's Brain 3. Brainwash 4. Driving Mr. Albert 5. IQ 6. From E=MC2 To Th… 2. Alternative Energy Series Water - The Perfect Fuel Summary: I would later learn that commercial hydrogen and oxygen producers also used this method in an inefficient manner that requires more energy than the fuel produced can generate through combustion.In the late eighties I would learn that a boy genius in California learned to make hydrogen from water efficiently with a twelve volt battery and standard auto electrical system, during the 1970s. Having a good filter can also help supply one with potable water when clean water no longer flows fr… 3. Geothermal Energy In Australia Summary:GEOTHERMAL ENERGY IN AUSTRALIAGeothermal energy might hail as an alternative source of energy to drive our turbines in a race to produce 'cleaner' electricity.What is Geothermal Energy?Geothermal energy is a natural 'clean' source of energy that is tapped from holes drilled several kilometres below the earth's surface from which hot water and steam is extracted. Article:GEOTHERMAL ENERGY IN AUSTRALIAGeothermal energy might hail as an fake source of energy to drive our turbines in a race … 4. Three Reasons Why Venus Flytraps Make Lousy Science Fair Projects By Jacob Farin Summary: Every year, I receive many phone calls from parents wanting to purchase Venus Flytraps for their kids' science project. During dormancy, Flytraps stop growing and their traps stop working.For any science projects to work, your young budding scientists will need to use plants that are actively growing. Traps will live for about 2 months, then it stops wArticle: Every year, I receive many phone calls from parents wanting to purchase morning star Flytraps for their kids' science proj… |
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