Whether you know a lot about geology or just a little, you probably know that the Earth’s crust and the material below it are made up of rocks and minerals. There are hundreds of varieties of rocks and minerals and each one has its own unique history from the time it was formed to the time someone finds a specimen and adds it to their collection
Hey Mini Me Geologists! Try this fun experiment to learn more about growing salt crystals. Did you know that the salt you put on your food is actually a mineral? Salt forms naturally by precipitation or evaporation. In this experiment, you will watch salt crystals form by precipitation because it is just more fun than watching water dry and leave salt behind, although you can try that method, too. Grab an adult to help you with the stove and boiling water but the rest you can do on your own. In nature, salt will precipitate from mineral-rich water in oceans or lakes so you will simulate ocean water to grow your crystals.
Staurolite is a silicate mineral which occurs in metamorphic rocks and is often found with the minerals kyanite and garnet. Staurolite is a 7 to 7.5 on the Mohs Hardness Scale which has a range from 1 (softest) to 10 (hardest), has a glassy to resinous luster and a colorless streak. Prismatic crystals of staurolite are common and often found twinned.
Discover some of the Earth’s most magnificent rocks in this Igneous rock collection. Fifteen amazing samples will give you a sneak peek into both intrusive and extrusive rocks. Each rock comes with an identification card which includes a photo and fun rock facts. Try to identify each rock using the hand magnifier and information cards. If you need a hint, the name of each rock is beneath the foam padding.
I love metamorphic rocks. To think that each of these rocks once was a different rock and just because of some really high heat and squeezing, they became something new is really cool! Here are some details on our My Rockin’ Collection Metamorphic Rocks kit. I think you’ll agree that these rocks are cool.
Teach your children about sedimentary rocks with this cool Sedimentary Sleuthing kit. Your kit comes complete with six cool sedimentary rock samples: lignite coal, sedimentary breccia, conglomerate, fossiliferous limestone, yellow sandstone and shale.
A new shipment of wonderful grossular garnet crystals have arrived. Beautiful grossular garnet mineral from Mexico is one of six varieties of garnet. Each single crystal shows the natural dodecahedral form of the garnet group. These samples, from Mexico, are approximately 0.75 to 1 inch in size.