MALACHITE (Copper Carbonate). This is a fist sized piece of botryoidal malachite.
whispers grommy is the best nerd go follow em ok. ok good
bl2 outlast crossover
im sad bc the obsidian i have is rly low quality and small and filled with a bunch of holes
SiO2::MgO, Fe3O4 - 4.DA.05 (Strunz)
(from San Pedro de Atacama, Chile and Snowflake Variety from Arizona, USA)
Obsidian is not a mineral, but a volcanic glass formed by the rapid cooling of volcanic lava. The variety “snowflake” is charcaterized by crystals of cristobalite, a polymorph of quartz. In prehistoric, obsidian was used to make weapons and spearheads. Presents pleochroism (black and grey)