Locality: Brazil
Great size for Tumbling!!
1. Color: Black onyx is characterized by its deep black color, which can sometimes exhibit slight variations or banding. The color is typically uniform throughout the stone, although natural variations may occur.
2. Hardness: On the Mohs scale of mineral hardness, black onyx has a hardness of around 6.5 to 7. This makes it relatively durable and suitable for use in jewelry and other decorative items.
3. Transparency: Black onyx is usually opaque, meaning that light does not pass through it. However, some specimens may exhibit translucency when held up to a light source.
4. Luster: Black onyx typically has a glossy or vitreous luster, giving it a smooth and shiny appearance when polished.
5. Density: The density of black onyx falls within the range of approximately 2.58 to 2.64 grams per cubic centimeter (g/cm³).
6. Metaphysical Properties: Black onyx promotes emotional stability and balance by soothing feelings of anxiety, fear, or grief. It is thought to enhance mental clarity, focus, and concentration, helping to sharpen the mind and improve decision-making abilities.
Photos have not been edited or altered, just taken in different daylight conditions to show the variation in color. Pieces are held in hand to help with scale and does not necessarily represent 1 pound. Specific pieces photographed may no longer be available.