What is a Geode?



Learn Science on mps-science.com. What is a Geode? article will help answer your questions on Science.We at mps-science.com specialize in Science. Science at mps-science.com provides the most up to date news and articles. If you have questions please do not hesitate to contact us.

Summary:
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.



Article Index: | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30


Advice
Home Business
Technology
Online Advertising
Motivational
Internet Marketing
SEO Help
Online Games
Science Articles
Happiness

More Articles:


1. Everything in This Dimension is a Wave By Lance Winslow
Summary: Since everything is a wave you can change to a wave of UV, gamma, sound or very low frequency, which in fact can change the surface of the temperature of the water in the ocean, or at any altitude up to and beyond the Ionosphere. 'it is all a wave!' Since all waves interact with all matter, we can change the waves and change the resultant, by a little fineArticle: Some have said that everything is a wave. That our entire life experience is a wave, that matter is held together by a wave…

2. DNA Testing has Changed Everything
Summary: DNA analysis has now superseded blood testing and is the most accurate method currently available for human identification.The possibility that DNA could be used for human identity and relationship testing had been discussed from the time DNA was first revealed as the molecule which makes people unique. As with conventional fingerprinting, where various loops and whorls are compared between two fingerprints, DNA testing relies on comparing certain DNA features called DNA markers between…

3. Devemos definitivamente conquistar a Lua?
Summary: Penso que o investimento direto ter' impacto na ind'a de novos materiais, sejam para uso em vestimentas, estruturas e equipamentos de constru' e manuten' de equipamentos. Existem muitas 'as que seriam beneficiadas com f'icas em gravidade baixa ou zero, como a de crescimento de cristais e a possibilidade de cria' de seq's moleculares de carbono, onde seria poss'l criar mat'as resistentes como o diamante, leves como espuma de sab' Penso que O maior benef'o, ser' da unifica' A unifica' das…

4. Many Uses of Metal Detectors
Summary: Many fancy metal detectors will even tell you how deep down the metal object is so you can find it easier. What Can I Find With a Metal Detector? You could find rings, bracelets, necklaces, coins or anything metal. Even some amusement parks such as 'Six Flags Fiesta Texas' use them, you buy your ticket then proceed to the park being stopped momentarily so the patrolmen can search any bags and have you walk through a metal detector. Article:Have you ever lost something at the berm or a…