Porphyritic Andesite

Object/Artifact

-

Great Valley Museum

Name/Title

Porphyritic Andesite

Entry/Object ID

0001.1.257

Description

A dark-colored, fine-grained, mostly extrusive rock that is approximately the fine-grained equivalent of diorite

Collection

Brown, Will

Dimensions

Height

22 mm

Width

31.5 mm

Length

39 mm

Weight

36 g