Rocks & Minerals

How to Identify Types of Rocks

By eHow Hobbies, Games & Toys Editor

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The key to identifying rocks is first to identify the minerals that compose them. Geologists and students should begin with the most obvious type of rock. Follow these steps to help you identify types of rocks using a number of methods... more »

How to Learn About Cobalt

By eHow Education Editor

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Cobalt, the 27th element, comprises 3,000 parts per billion of all matter in the universe. Cobalt is one of the three ferromagnetic elements, the other two being iron and nickel. The following steps will aid in your search for information about ... more »

How to Make Rock Salt

By eHow Hobbies, Games & Toys Editor

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Rock salt is a coarse-grained unrefined salt that usually contains inedible impurities. Rock salt is used in cold climates on sidewalks and driveways to melt ice. You can also use rock salt to melt the ice surrounding the can holding the ice ... more »

How to Make Salt Crystals

By Butterfly5

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You can make Salt Crystals at HOME. Fun project to do with a Scout Troop, Scout Pack, Classroom or at home with your children... more »

How to Obtain Arsenic

By eHow Education Editor

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Arsenic occurs in elemental form but is much more common in minerals. Most of the world's arsenic is mined in China with most of the remainder coming from Chile, Mexico, the Philippines and Russia. The following steps will describe the more ... more »

How to Pan for Gold

By eHow Hobbies, Games & Toys Editor

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Put yourself in the shoes of the tens of thousands of forty-niners who traveled west in search of gold during the wild 1849 California gold rush... more »

How to Pan for Gold, Silver and Gems

By eMerrill

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Gold, silver and gems often occur in coarse-grained rocks like granite, which is made of mostly lighter minerals like quartz and feldspar. Panning is a method of separating the lighter from heavier minerals using water and a pan with sloped sides ... more »

How to Use a Pendulum

By Patricia Resnick

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Many of the questions we ask psychics can be answered by ourselves with the help of a pendulum. A pendulum is a very straight-forward tool that gives mostly "yes" or "no" answers, with an occasional "undetermined." ... more »

How to Use Ruby Energy

By Patricia Resnick

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Rubies offers love at the spiritual level. They also heighten our love for life, giving us motivation and inspiration to choose wisely for ourselves and others... more »

How to use water displacement to measure volume

By bmerritt

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When you want to try and measure the volume of an irregularly shaped object, it is often difficult and complicated to do. The easiest method to achieve this is known as the "water displacement method". This is the most commonly used ... more »

How to Visit the Big Spring (Kitch-iti-kipi) in Michigan

By IsabelleKay

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Imagine walking through a dense forest and finding an ice-cold, glowing turquoise lake! Michigan's Kitch-iti-kipi, or Big Spring, has been amazing people for centuries... more »

How to A Bright Green flame

By pmca

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In this video I will show you how to make liquid green fire from materials found at Wal-Mart. simple trick can provide hours of fun and is great to use on Halloween, fill little containers with this stuff and line it up on the sidewalk leading to ... more »

How to Choose a Field Guide for Fossils

By eHow Hobbies, Games & Toys Editor

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You can study the earth's history by locating and identifying fossils in your area... more »

How to Clean Tarnish From Sterling Silver

By Nessa

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Sterling silver is an alloy of 92.5% silver and 7.5% copper. Silver tarnishes when exposed to air, with tarnish occurring more quickly in damp conditions. In this article, you will learn three methods to clean sterling silver... more »

How to Create a Rockhound Kit

By eHow Hobbies, Games & Toys Editor

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A kit of basic tools and supplies can put your rockhounds hot on the trail of their next treasure... more »

How to Identify Igneous Rocks

By eHow Hobbies, Games & Toys Editor

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There are three kinds of rock: igneous, sedimentary and metamorphic. Igneous rocks form when lava or magma harden. Sedimentary rocks are formed when loose rock and dirt are compressed. Metamorphic rocks are old rocks of any kind that are ... more »

How to Make Crystals

By eHow Hobbies, Games & Toys Editor

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Growing a crystal garden is a great science project that kids can do at home. All you need are a few simple ingredients that can be found at your local grocery store, a little ingenuity and a little patience. These steps will help you understand ... more »

How to make gun powder

By slayer

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First made by the Chinese for use in fireworks, black powder was first used in weapons and explosives in the 12th century. It is very simple to make, but it is not very powerful or safe. Only about 50% of black powder is converted to hot gasses ... more »

How to Make Synthetic Moissanite

By eHow Hobbies, Games & Toys Editor

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Moissanite gemstones have found a place in the world of fashion jewelry. In 1893 a meteorite crashed. A substance was discovered that was later named Moissanite or naturally occurring silicon carbide. The crystals were very small, the commercial ... more »

How to Expand a Rock Collection

By eMerrill

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If you've started collecting rocks and need ideas on where to find more specimens, try some of the following locations... more »

How to Find Petoskey Stones

By eHow Hobbies, Games & Toys Editor

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The Petoskey stone is the state rock of Michigan. The Petoskey stone is corral that has been fossilized. These rocks can be found along the shores of Lake Michigan and Lake Huron. The name Petoskey is an Ottawa name and means "rays of dawn" or ... more »

How to Identify Metamorphic Rocks

By eHow Hobbies, Games & Toys Editor

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Rocks that undergo changes are metamorphic rocks. Igneous and sedimentary rocks eroded by wind, weather and water become metamorphic rocks. Metamorphic rocks are changed by heat and pressure. Because they start as other rocks, there are many ... more »

How to Know how Rocks are Formed

By Paul McDaniel

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When looking at a rock, a person might ask "how was that rock formed?" In geology, there are three main types of rocks and rock formation - igneous, sedimentary, and metamorphic - each formed in a different way through the rock cycle. ... more »

How to Use Cinnabar Energy

By Patricia Resnick

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Cinnabar is a mixed blessing, because it has some helpful qualities, but can also be poisonous because it is very soft and contains mercury. It is recommended that you NOT handle cinnabar any more than necessary. All information offered here is ... more »

How to Use Crystals For Your Protection

By reginapaul

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Crystals can be used for different types of protection. Generally speaking when someone mentions crystals and protection in the same sentence they are speaking of protection from psychic sources which seek to do harm. However, crystals can also ... more »

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