"Specialty and Lapidary Rock Specimens"

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

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

Striking display slab of trachyte that hass been cut, ground and laquered.

Glossy green dunite (olivine) inclusion in non-genetically related basalt. Average size: 3" x 4".

Cut and finished samples with fiberoptic samples.

Deformed pebbles in a metamorphased conglomerate. Large sawed and lacquered specimen.

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