"gel+box"

Brownish black, intermediate stage between peat and bituminous coal.

Gray, crystalline, massive, 'Alberene stone'.

Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.

Dark gray, composed mostly of pyroxene and olivine.

Mica group; cut sheets showing basal cleavages. Books and sheets in bulk pack.

One-piece, chemical-resistant aprons can be worn once and thrown away.

Deep purple crystal clusters.

Made of polyurethane for durability and flexibility, these catheters provide a higher certainty of catheter placement due to the unique flashback feature, which allows improved visualization for difficult venipunctures

Explore Animal Tissue Types

Nearly pure, green crystalline forsterite.

Dark-green 'verde antique', containing some chlorite and calcite.

Classic, dark; from the Columbia Plateau.

White, massive, coarse crystalline vein, Mohs’ hardness of 7.

Chlorite-mica with perfect slaty cleavage.

PCR amplify the ITS region, a fungal DNA barcode that you can sequence and match to genetic databases for molecular identification of fungi.

Gray-to-brown basaltic, with over 50% vesicles.