R877

Sample ID R877 • Cabinet B

Scoria

7.2cm W x 5.1cm H x 5.6cm D • 206g
Sample TypeRockRock QualityIgneousRock TypeExtrusive
CompositionMaficTextureVesicularColor IndexReddish
Clast SizeAcid ReactionMohs Hardness 5

Two red brown samples with a frothy appearance. Formed when lava cools so rapidly that the gases trapped within it cannot escape, leaving behind bubbles.