"Ward's Phenomena"

Gray and poorly sorted, with a gritty texture.

Coarse grained and abundant in plagioclase feldspar.

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

Sale

Unusual glassy tubes of fused sand produced by lightning strikes in desert sediments. Average size: 1.5"- 2".

Light gray, fine-grained, well-foliated, schistose.

Red-brown to gray, coarse-grained, containing feldspar and mica.

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

Massive, chlorite-rich.

Dark, coarse-grained, and composed chiefly of hornblende.

Shiny black volcanic glass showing conchoidal fracture and some spherulites.

Shows porphyritic texture in a fine dark matrix abundant large feldspar phenocrysts. Hand specimen.

Ward's® Ventifact

Sale

Gray, fine-grained, massive contact rock.

Gray to brown mudstone with abundant silt.

White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.

Classic, very coarse-grained igneous texture.