a volcanic glass formed from cooled lava with inclusions of the white mineral
which may affect its clarity
the hardness of the matrix minerals can vary and may be lower than that of the emerald
Some pieces may contain Mica
The spots are usually caused by the presence of black or brown minerals such as tourmaline or iron oxide
Mixed Agate -Large Pieces - India - 10 pounds Green a volcanic glass formed fromLocality: India Large pieces Mix of India Agates like Bloodstone, Fancy, Moss Agate, Tree Agate and others. Color: Agate comes in a wide range of colors, including but not limited to white, gray, blue, green, pink, brown, red, and black. It often exhibits banding, concentric rings, or other patterns. Hardness: Agate has a hardness of 6. 5 to 7 on the Mohs scale, making it relatively durable and suitable for various jewelry and ornamental purposes.