Rough Rock Products
Natural Expressions Rock Shop has an extensive array rough rock and stone. Our rough rocks are always all natural. We are located in located in Gilbert, Arizona and ship rough rock almost anywhere in the world.
Rough rock is usually used for Lapidary purposes and sold by the pound. Our options include: (Updated 10/21/20)
Petrified Wood, Condor Agate, Chrysocolla, Crazy Lace Agate, Pink Opal, Moroccan Agate, Howlite, Succor Creek Jasper, Bruneau Jasper, Mookaite Jasper, Dryhead Agate, Mara Mamba Tiger’s Eye, Amazonite, Blue Lace Agate, Sonoran Sunrise, Labradorite, Graveyard Plume Agate, and much more.
Slabs For Cabbing
Slabs are generally used for cabbing. Unfinished slabs are excellent for cabbing, and produce a vast amount of products ideal for jewelry, craft products, artwork, etc. Cabbing is the process of making cabochons, or “cabs” for short. Cabs are rocks that are cut and polished with an arched rounded top.
The majority of slabs are sold by the square inch. Slabs of more prized minerals are sold by the slice. You can see this reflected within the pricing details, within the slab’s listing. To determine slab size, you lay a plastic 1” grid over each slab and tally the total squares covering the slab.
Popular minerals that are great for cutting into slabs and then cabbing include Azurite and Malachite. These materials yield breathtaking blue and green cabs. Imperial Jasper is another popular slabbing material, and features a burgundy-red material that has an immense layering pattern.
A geode is a ball-shaped rock formation with an internal atrium often lined with banded agate and quartz crystals. They are known for their crystal interior. They begin as bubbles in volcanic rock, or when an animal or tree roots burrow into the sedimentary rock. Over millions of years the external shell of the globular formation hardens. During this time water containing silica particles begins to build on the inner walls of the gorges within the geode. As water continues to follow through the geode numerous mineral layers are deposited. The size of the geode determines how long this process takes. Some of the largest crystals have taken minerals of years to form and grow.
Geodes are frequently found in California, Arizona, Nevada, Utah, and Iowa. However, they are surely not limited to these areas. The outside of a geode looks like any plain old rock. They are organic-shaped; stray away from narrow or point rocks. They are round or oval, and have a lumpy exterior. Since they are filled with crystals, it should sound and feel hollow when you tap it on the ground. Be sure not to break it open. When you are ready to open your Geode place it in a sock and strike the center using a hammer. Be sure to wash your Geode prior to display. You can use dish soap and soak for at least 24 hours. Give them a quick rinse and you are ready to display.