NAME: Marble

CLASSIFICATION: Metamorphic Rock

CHEMICAL MAKEUP:
where heat and pressure act on limestone or dolomite

HARDNESS: 3 to 5 1/2 or more depending on included minerals

DESCRIPTION: Marble is known for it's snowy white color, but can also come in other colors thanks to accessory minerals. These minerals act as coloring agent turning marble red, yellow-browns, green, and even black. The different colors can be unevenly distributed causing spots and bloches, as well as veinlike patterns. The grains in marble can vary from fine to medium depending on the make up, and the forces that went into forming it. If made mostly of calcitic rocks marble will effervesces(which is the technical term for making bubbles and fizzing) vigorously when cold hydrochloric acid is dropped on it. While if it is made mostly of dolomitic rocks it will only effervesce when it has been turned into powder, or if the acid is hot. This helps to determine the make up of the particular specimen. One of the more important industrial rocks marble is used in many ways depending on it's quality. The higher quality marble is used for statuary, architectural, and ornamental purposes. When it is in a lower quality form it is crushed and used as concrete aggregate, road metal, railroad ballast, and filler beds..
COMMONLY FOUND: Marble can often be in regions of metamorphic rocks interbedded with mica schists and gneisses, or adjacent to bodies of intrusive igneous rocks. One of the more well know places to find marble is Carrara, Italy were Michelangelo and many other sculptors found beautiful marble for their statues. It can also be found in Scotland, Tuscany, Tincino, Spain, and in the western Alps. In the USA we also have quite a lot of marble with some beds of statuary marble found at Sylacauga , AL spanning 60 meters in places! Other US locales include Georgia, Vermont, Maryland, and in the Tennessee river valley.
INTERESTING FACTS: Lazurite a beautiful blue mineral, which is the main ingredient of ultramarine pigment only occurs in marble. The marble used by Michelangelo is so pure white that it is translucent, meaning that light filters into the surface a short way, and that it can make his statues appear almost human.

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Interesting Facts about our Website

If you’re looking for rocks and minerals for kids, you’ve come to the right place. Kids really seem to love rocks, minerals, and fossils and enjoy collecting them, and sometimes trading them with their rock hound kid friends. It’s educational and fun for the whole family. The great thing about collecting rocks and minerals is that it’s a fun way to learn about earth science, as well as how rock and mineral specimens are formed.

Are you a Grandparent looking for a great gift for you grandchild? You might want to consider a rock and mineral kit for your rock hound grandchild. Fossil kits also make a wonderful gift that will encourage and drive children’s curiosity about geology and earth science. Imagine the look on their faces when they open a rock kit and find gorgeous specimens like amethyst, calcite, geodes, and quartz. The study of rocks and rock formations are fun for kids and adults alike.

You don’t have to have a degree in geology or earth science to be a rock hound. Rocks, minerals, and fossils can be studied and enjoyed by kids of all ages. Each rock kit comes with a booklet or fact sheet of information on the specimens contained in the kits. The various rocks and minerals make for interesting discussion pieces, and you’ll have great samples to show your friends, and fellow rock collectors.

Fossils are rock treasures that kids love to show off to their friends. Rock hounds love to have fossils in their collection along with more attractive rocks and minerals. Fossils have started many a child off to a lifelong study of geology, archaeology, and marine biology. It’s fascinating to find rocks that contain the skeletal frames of marine life, plant life, insects and animals millions of years old.

Are you a school teacher looking for great teaching aids? Rock hound rock and mineral kits are a great way to motivate your students to take an interest geology and earth science. Perhaps you’re planning a science fair, or have a science club, if so, then consider these rocks and minerals for kids at your next fair or meeting.

Kids love to hunt for rocks and fossils, but often there are no places for them to dig, and even if there are, often they are on private property. Rock and mineral kits, and fossil kits are a great way for kids to actually get their hands on these specimens. Rock hound kids will be able to have a collection of rocks and minerals including amethyst, quartz, pyrite, geode, calcite, and many others. Fossils include ammonite, dinosaur bone, turritella, and petrified wood.

Have you ever thought about starting your own rock hound club? A club for adults and children, as well as a great educational hobby for families to share. Rock kits are a wonderful way to get a start in rock collecting, and kids love to trade rocks and minerals with other kids. There are plenty of species of rocks and minerals, and they are not that expensive, and well worth the investment.


If you’re looking for inexpensive rock and mineral specimens for kids, then you need not look any further. We’ve assembled a great variety of rock, mineral, and fossil kits for kids that are inexpensive, yet good sized specimens. If you have a rock hound kid in your house, and you want to encourage them to study rocks and minerals, then we have what you need for you rock collecting little geologist.

Most people struggle with terms like metamorphic, sedimentary, igneous, and rock cycle, and why not, these are terms that scientists use in the field of geology. It’s important to know these terms for sure, but you can still enjoy, collect,, and appreciate rocks, minerals, and fossils. Many a child started their career in geology through collecting rocks and minerals.

If you’re looking for great gift ideas or stocking stuffers, rock and minerals kits are a great idea for you little geologist. Imagine them waking up on Christmas morning to a socking filled with geodes, or amethyst.