obsidian

Are you someone who loves gemstones and crystals? Perhaps their distinctive colors, shapes, and characteristics fascinate you. One type of stone that you may have heard of is black obsidian. Black obsidian is a striking volcanic glass that has been used for centuries for its beauty and healing properties. But have you ever wondered whether…

When we think of minerals, we often picture hard, crystalline substances like diamonds, quartz, and calcite. However, not all naturally occurring materials with a uniform chemical composition are considered minerals.  Obsidian, a type of volcanic glass, is one such substance that is often excluded from the mineral category , despite its geological importance.  In this…