"Metamorphic+Rocks"

VWR® Tube rotators are ideal for applications requiring highly efficient and consistent mixing. VWR offers rugged and reliable fixed speed, digital and large capacity models.

VWR® 3D nutating mixers are designed for sample mixing with combined motions of an orbital shaker and 2D platform rocker. These mixers are well suited for many routine laboratory applications that require thorough sample mixing.

Specially selected subsoil, 1 lb.

The cycles of rock formation, beautifully simplified!

Coarse-grained plagioclase and pyroxene with some olivine.

Banded volcanic glass.

Silvery, paragranite and muscovite-rich with medium garnet crystals.

Coarse grained and abundant in plagioclase feldspar.

Volcanic glass with snowflakes embedded throughout.

Hematite-cemented quartz; orthoquartzite.

Classic, dark; from the Columbia Plateau.

Specially selected topsoil, 1 lb.

Dense and massive.

Gray and poorly sorted, with a gritty texture.

Abundant small black phenocrysts in a gray to brown matrix.

Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.