VWR, Part of Avantor - Chemicals and laboratory scientific supplies

Phyllite

/www.boreal.com/images/Phyllite.pdf

+ward’ssciencewardsci.com800-962-2660 Phyllite Type: Metamorphic regional. Texture/Appearance: Very fine-grained showing strong schistosity; commonly displaying crenulated (wavy) cleavage. Generally coarser than slate. Cleavage surface exhibits a ...

Greenstone

/www.boreal.com/images/Greenstone.pdf

ward’s sciencewardsci.com800-962-2660 Greenstone Type: Metamorphic; regional. Texture/Appearance: Fine-grained massive or compact; generally non-schistose. Color: Dark green. Mineralogy/Chemistry: Mainly composed of chlorite actinolite epidote and...

Serpentinite

/www.boreal.com/images/Serpentinite.pdf

wardsci.com 800-962-2660 Serpentinite Type: Metamorphic; regional. Texture/Appearance: Fine to coarse-grained lamellar or mesh-like; massive with frequent zonations and veins. Color: Dark green to black. Mineralogy/Chemistry: Ultramafic; composed ...

Graywacke

/www.boreal.com/images/Graywacke.pdf

wardsci.com 800-962-2660 Graywacke Type: Sedimentary; clastic. Texture/Appearance: Generally coarse-grained with angular to sub-angular poorly sorted grains in a clayey matrix. May show graded bedding; fossils are rare. Color: Gray to greenish-gra...

Slate

/www.boreal.com/images/Slate.pdf

wardsci.com 800-962-2660 Slate Type: Metamorphic; regional. Texture/Appearance: Fine-grained; lacks mineral segregation banding displays rock cleavage in one direction. Surface may appear somewhat smooth and shiny. Color: Various including dark gr...

Amphibolite

/www.boreal.com/images/Amphibolite.pdf

+ward’ssciencewardsci.com800-962-2660 Amphibolite Type: Metamorphic; regional. Texture/Appearance: Massive to foliated; gneissic to schistose. Color: Black to dark-green often speckled with white. Mineralogy/Chemistry: Mafic; composed primarily of...

Diabase

/www.boreal.com/images/Diabase.pdf

+ward’ssciencewardsci.com800-962-2660 Diabase Type: Igneous; intrusive. Texture/Appearance: Often porphyritic; characterized by an ophitic groundmass where intersecting plagioclase laths are partially or completely enclosed by pyroxene. Massive wi...

Metaconglomerate

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+ward’ssciencewardsci.com800-962-2660 Metaconglomerate Type: Metamorphic regional. Texture/Appearance: Coarse-grained rock containing rounded to subangular clasts greater than 2mm in diameter and distributed in a fine-grained matrix or metamorphic...