Vitreous Luster Definition and Mineral Examples
Vitreous luster describes how a mineral reflects light, resembling glass. Derived from the Latin vitreus (meaning " gla…
Vitreous luster describes how a mineral reflects light, resembling glass. Derived from the Latin vitreus (meaning " gla…
Industrial Waste Is Becoming Rock in Just Decades, Scientists Find Scientists have identified a novel rock type that has for…
Purple fluorite is the violet to deep-purple variety of the halide mineral fluorite (calcium fluoride, CaF₂). Its vivid col…
Boulder opal is a distinct variety of precious opal that forms within the cavities, seams, or fissures of ironstone boulde…
Over 99.999% of Earth’s gold is trapped in its core, slowly reaching the surface through volcanic activity. Earth’s core ha…
To the naked eye, the Moon appears gray with striking light and dark patches, yet its simple appearance hides a complex geol…