Iridescent Pahoehoe

Title

Iridescent Pahoehoe

Identifier

HA-6

Description

Hand Sample: Dark gray, vesicular, glassy sample. Sample surface has a ropey texture with vesicles ranging from 0.01cm to 2.5cm in diameter. Sample has an iridescent luster on unweathered surfaces.
Thin Section: Aphanitic opaque groundmass with phenocrysts of amphiboles, plagioclase, and olivine. Vesicles are abundant throughout thin section.

Date

Sample collected January, 1969

Contributor

Western Minerals

Spatial Coverage

Kiluea Volcano - Island of Hawaii
Maximum extent of eastern flow from main vent.

Temporal Coverage

1960

Number of Thin Sections

1