Onyx Tree on Quartz Base

Black Onyx is a popular variety of onyx, distinguished by its deep black color. While some black onyx forms naturally.It has been valued for its beauty and symbolism for thousands of years.

Key Characteristics:Chemical Formula: SiO₂ (Silicon Dioxide)Crystal System: Trigonal (like other forms of quartz)

Color: Solid black or black with white bands (in untreated specimens)Luster: Waxy to vitreous (glassy), capable of a high polishHardness: 6.5–7 on the Mohs scale (relatively durable but can still be scratched)

Transparency: OpaqueStreak: White

Natural Black Onyx: Purely black varieties of natural onyx are rare and often come with subtle color variations or band.

Occurrence:Black onyx is found in many parts of the world, particularly in areas rich in volcanic activity where silica deposits are common. Significant sources include:BrazilUruguayMexicoIndiaUnited States (Arizona and California)

Care:To maintain its polish and luster, black onyx should be cleaned with a soft cloth and mild soap solution. It’s important to avoid exposure to harsh chemicals, strong sunlight, or prolonged moisture, as these can affect the dye or polish in treated stones. Storing black onyx separately or wrapped in a soft cloth can prevent scratches from harder materials.

5"in Tree