Category: Aggregates and Stone Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window) Description Reviews (0) Black Lava Rock is a 1″ – 2″ sized crushed stone that has a dark black colour. It is typically used as a decorative ground cover or as a permanent alternative to mulch in garden beds. Reviews There are no reviews yet. Be the first to review “Black Lava Rock” Cancel replyYour email address will not be published. Required fields are marked *Your Rating Rate… Perfect Good Average Not that bad Very Poor Your ReviewName * Email * Save my name, email, and website in this browser for the next time I comment.