- Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon eruption, usually into water
- Obsidian shares many physical properties with its major chemical component, quartz, despite looking dissimilar - great for classification exercises. This set of twelve samples is excellent for group study and examination
- Each specimen is selected and hand processed, ensuring each sample exhibits defining features
- Sourced from a variety of locations around the world
- Each specimen sample is packaged in a transparent bag, and is labeled & barcoded for easy identification
Obsidian, also known as volcanic glass, forms from lava that cools almost immediately upon eruption, usually into water. Excellent for classroom mineral study and identification. Obsidian shares many physical properties with its major chemical component, quartz, despite looking dissimilar - great for classification exercises.
While each specimen will vary slightly in shape, size and color, it will measure approximately 1" in length. Each is individually packaged, labeled & barcoded for easy identification and storage.
Each specimen is selected and hand processed, ensuring that each sample exhibits defining features. Pack of 12 samples.