Snowflake obsidian belongs to the obsidian family (volcanic glass). Its’ energy is gentler than what black or mahagony obsidian have. It calms and balances before bringing out truth and suppressed feelings. Use and weat cautiously when you are definitely ready to look yourself in the eyes.
Flat stone suits the best for healingwork, because it covers the chakra and the contact surface are is the largest. Also it will not fall off the body and is large enough to draw forth energetic and physical changes. Flat stones are also the best to carry in your pocket.