R720

Sample ID R720 • Cabinet B

Tuff

15.132cm W x 17.5cm H x 10.214cm D • 5570g
Sample TypeRockRock QualityIgneousRock TypeExtrusive
CompositionFelsicTexturePyroclasticColor IndexLight
Clast SizeAcid ReactionMohs Hardness 5

It is a big somewhat rectangular rock. You can vaguely see lines from the different volcanic outbursts. It is varying shades of light greyish-brown color.