Words to Describe perlitic

Things perlitic often describes ("perlitic ________")

• cracks
• structures
• pitchstone
• steel
• masses
• fissures
• matrix
• structure
• glass
• transformation
• forms
• cracking
• obsidian
• parting
• rhyolite
• fractures
• rhyolites
• textures
• porphyry
• texture
• iron