What does spinel mean?
noun
A mineral species of oxide of magnesium and aluminum, typically occurring in octahedral crystals of various colors, including red, blue, and green. It is a relatively rare mineral, often found in metamorphic and igneous rocks.
Example
"The geologist carefully examined the spinel crystals in the rock sample, noting their vibrant blue color and intricate crystal structure."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.