🌋⚫

#obsidian #volcanic glass #glassy texture #extrusive rock #felsic rock #conchoidal fracture

🌋✨🪨

#dacite #quartz #plagioclase #crystalline rock #volcanic rock #igneous rock #felsic rock #phenocrysts

🪨⚪⚫️✨

#rock #stone #geology #mineral pattern #speckled stone #igneous rock #felsic rock

🪨⚫⚪✨

#speckled rock #polished stone #granular texture #felsic rock #mineral composition #intrusive rock