Which is better obsidian or onyx? check this out | obsidian vs onyx
Andrew Henderson
Updated on July 19, 2026
The Main Differences Between Onyx vs Obsidian are: Onyx has a higher hardness and toughness rating than obsidian. Onyx is typically more expensive than obsidian. Onyx is nearly always opaque, whereas obsidian ranges from transparent to opaque.
Onyx is a denser, more earthy crystal. Obsidian is volcanic glass so it has more of a fire element to it. Black Tourmaline is double terminated so it draws in any negative energy, transforms it and then releases the positive.
So, while onyx is indeed a mineral with a hexagonal crystal system, obsidian is essentially a black volcanic glass. … The easiest way to differentiate between black onyx and black obsidian is by lifting them up since onyx is significantly denser and heavier than obsidian.
Is onyx or obsidian more expensive?
Overall, onyx tends to be paired with expensive materials like gold, platinum and diamonds and many vintage pieces can be found on the market, all of which adds to its value. Obsidian is generally less expensive and less valuable than onyx.
Is obsidian of onyx harder?
Because onyx is heavier than obsidian, it’s typically used in smaller pieces. Both make for lovely decorations and ornaments, however, and contribute to a rather mystical and spiritual feel on any piece of jewelry.
Can onyx and obsidian go together?
Black obsidian is a powerful cleanser of psychic smog created within your aura, and is a strong psychic protection stone. With a combination with black onyx that transforms negative energy, and helps prevent the drain of personal energy.
How can you tell if onyx is real?
To test your black onyx piece for authenticity, use a lighter and gently heat the surface of the stone for 10 seconds before dropping into a glass or bowl of water. If the stone remains unchanged, there’s a good chance it’s the real deal. If the piece appears melted or damaged in any way, it isn’t black onyx.
Is there fake obsidian?
Obsidian. This can be a particularly insipid fake; true Obsidian is volcanic glass, which is obviously quite similar to man-made glass, both in appearance and composition. Some pieces are easy to identify as fakes – primarily due to their clarity. Fake Black Obsidian is very hard to identify, unfortunately.
Can onyx go in water?
Black Onyx is a hard, smooth stone that tolerates water well, so using water to cleanse your stone should not damage it.
Is obsidian better than roam?
The biggest difference between the two is what they’re designed to optimize for. Using Notion as a benchmark for optimization, Notion optimizes for curation and organization, while Roam optimizes for creation and ideation. Obsidian is in that sweet spot in the middle.
What is onyx stone good for?
Black onyx crystals can be used for grounding, protection, and self-control, and as a shield against negative energy. Black onyx has a calming quality, which can be beneficial in working with challenging emotions such as grief and anxiety. Black onyx also helps to balance yin and yang.
Is obsidian rare?
Obsidian is found in many locations worldwide. It is confined to areas of geologically recent volcanic activity. Obsidian older than a few million years is rare because the glassy rock is rapidly destroyed or altered by weathering, heat, or other processes.
Is obsidian heavy?
Unlike many other precious gemstones, beautiful and practical obsidian stones can be found in very large sizes up to hundreds of carats. Obsidian is moderately heavy for its size with a 1.00 carat oval obsidian stone typically having dimensions of around 2” x 1.5” x 0.5”.
Is obsidian worth anything?
There is no set value or market for obsidian, unlike silver and gold, where there are world markets and indices. Obsidian is not an expensive stone. This being the case, a piece of obsidian can cost $2 or $100 depending on the quality and processing it has undergone, you can shop at Amazon.