What is Pyroxene? A Geologist Explains!

What is amphibole, Hornblende, and asbestos? A geologist explains.

Minerals with Willsey: Olivine, Pyroxene, and Amphibole

What is Feldspar? A geologist explains!

33. How to Identify Rocks

What is sandstone? A Geologist Explains

Minerals with Willsey: Feldspars

Rock and Mineral Identification

What is granite? A geologist explains!

Rock Identification with Willsey: BASALT and its many varieties

Minerals with Willsey: Quartz

How to Identify Igneous Rocks in Thin Section & Hand Sample | GEO GIRL

Identifying Minerals -- Earth Rocks!

pyroxene

16) Olivine Pyroxene and Amphibole

What are Trilobites? A Geologist Explains!

The Boring Billion? A geologist explains!

Rock Identification with Willsey: Foliated Metamorphic Rocks - Slate, Phyllite, Schist, and Gneiss

Mineralogy: Lecture 48, Feldspars

How to Identify Metamorphic Rocks in Thin Section & Hand Sample | GEO GIRL

Rock Identification with Willsey: Intro to Igneous Rocks!