Piper’s Review of our Rock & Mineral Coloring & Activity Book

Piper is back with an all new video. This time she tells you a little bit about Mini Me Geology’s Rock & Mineral Coloring & Activity Book.

Ask-a-Geologist #20: What can you tell me about the mineral pyrite?

Today I have a special guest with me. Her name is Piper and we are discussing the mineral pyrite. (Make sure you watch the video until the end to see our first blooper reel!)

What is Rock Weathering?

Ah, the weather. Rain, wind, snow, ice, heat and cold all affect the nature and appearance of the Earth’s exposed rocks. Rocks and minerals that are out in the open over time will change the way they look due to the weather. The heat and cold will make the rocks expand and contract which can cause cracking and flaking.

Rock Camp was Fun!

I held my annual Rock Detectives Camp last week and it was a blast!

Geology is all around you!

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

Paleontology: Fossils, Fossils, Fossils!

Paleontologists are geologists and scientists who specialize in the study of fossils. Fossils help to tell the story of our great Earth. Almost all fossils are found in sedimentary rock such as shale, limestone, and sandstone. A fossil is formed when an animal or plant dies and is quickly buried by sediment before it has time to decay. The hard parts of the animal or plant such as shells, bone and wood are fossilized in the rock formed from the sediment.

Ask-a-Geologist #19: What gives amethyst that pretty purple color?

Lily wrote to us and asked about the mineral amethyst. Specifically, she wants to know what gives amethyst that beautiful purple color. In this video, we talk about why amethyst is purple, its relation to quartz and an interesting fact about how citrine fits into that mineral family.

A Rock Weathering Experiment You Can Do In Your Kitchen!

very day, rocks are subjected to wind, rain and other mechanical processes that cause them to breakdown into smaller pieces and different forms. This process of weathering is part of the rock cycle and causes sedimentary, igneous and metamorphic rocks to break down into smaller sediments and soil-sized particles. You can learn a about rock weathering right in your own kitchen! Try this fun experiment to learn more about the mechanical weathering of rocks and post your results in the comments below.

Rock Layer Folding Experiment

lthough the land you stand on seems like it is firmly in place, it is actually moving. The Earth’s crust is divided up into pieces that are called “plates.” These plates are slowly moving around the Earth. While they are moving they sometimes bump into one another which cause the rocks on the plates to fold and push their way into mountains. All rock layers are originally created horizontally. This is a simple experiment that is great for showing the possible effects when pressure is applied to horizontal rock layers.

The Fizz Test for Limestone & Marble Rocks

Many rocks can look alike. Sometimes telling the difference between a limestone or marble and other rocks such as shale and quartzite can be difficult. One way geologists test the rocks is by performing the acid or “Fizz” test. Calcite is the main component of limestone rocks and its varieties like oolitic limestone, fossiliferous limestone, coquina and marble. The calcite mineral is made of calcium carbonate which reacts with acid. Other varieties of calcium carbonate minerals such as aragonite and dolomite will also fizz during this test.