〜自然と人の再生の物語〜　三宅島ガラス　カボション　スクエア型（大）　n366

This square-shaped glass item comes in a loupe case and features a unique blue-green color due to iron content in the glass. It is made from materials including volcanic ash from Mount Otake on Misaki Island, Japan.

• The description claims that the glass has a unique blue-green color due to iron content.
• The description states that the glass is made from volcanic ash from Misaki Island.