chen phoebe

Fossil formation On this wall, we will discuss fossil f […]

Gemstones are classified using a different crystal syst

Interactive map This is an interactive map of where dif

Metamorphic rock Metamorphic rock is formed by the meta

6Cs Using the 6Cs, color, cut, clarity, and carat, cred

Organic gemstones Organic gemstones are more common and

Igneous rocks Next we have igneous rocks, which come fr

Sedimentary rocks There are 3 different types of rocks: