BigGreenRock Profile Topics Started Replies Created Engagements Favorites Forum Topics Started Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Volcanic Glass? Olivine? Peridot? Very Heavy, Translucent Stone Started by: BigGreenRock in: Identification 3 3 11 years, 1 month ago graniteguy Viewing topic 1 (of 1 total)