Obsidian and onyx are two similar-looking stones that have been used for centuries for jewelry and decorative purposes. But how do you tell the difference between them? This guide will help you understand the distinctions between these two stones, so you can make the right choice for your needs.
What is Onyx?
Onyx is a type of chalcedony quartz, which is a type of cryptocrystalline quartz. It is composed of silicon dioxide and is known for its dark and light bands or layers. Onyx is found in a variety of colors, including black, blue, green, and red, and is often used to make jewelry and decorative items.
What is Obsidian?
Obsidian is a type of volcanic glass, which is formed when molten lava cools quickly. It is composed of silicon dioxide and has a glossy black or dark brown appearance. Obsidian is also used in jewelry and decorative items.
How to Tell the Difference Between Onyx and Obsidian
The main difference between onyx and obsidian is their composition and formation. Onyx is composed of silicon dioxide and is formed when chalcedony quartz cools slowly, while obsidian is composed of silicon dioxide and is formed when molten lava cools quickly.
Onyx has a layered appearance, with dark and light bands, while obsidian has a glossy black or dark brown appearance. Onyx is usually found in a variety of colors, while obsidian is always black or dark brown.
Onyx is usually harder than obsidian and is more durable, making it a better choice for jewelry and decorative items. Obsidian is brittle and easily breaks, so it is not the best choice for making jewelry or decorative items.
Frequently Asked Questions about How to Tell the Difference Between Onyx and Obsidian
What is the difference between onyx and obsidian?
The main difference between onyx and obsidian is their composition and formation. Onyx is composed of silicon dioxide and is formed when chalcedony quartz cools slowly, while obsidian is composed of silicon dioxide and is formed when molten lava cools quickly.
What color is onyx?
Onyx is usually found in a variety of colors, including black, blue, green, and red.
What color is obsidian?
Obsidian is usually black or dark brown.
Is onyx harder than obsidian?
Yes, onyx is usually harder than obsidian and is more durable, making it a better choice for jewelry and decorative items.
Is obsidian brittle?
Yes, obsidian is brittle and easily breaks, so it is not the best choice for making jewelry or decorative items.
Is onyx used for jewelry and decorative items?
Yes, onyx is often used to make jewelry and decorative items.
Is obsidian used for jewelry and decorative items?
Yes, obsidian is also used in jewelry and decorative items.
Conclusion
Onyx and obsidian are two similar-looking stones that have been used for centuries for jewelry and decorative purposes. But knowing the differences between them can help you make the right choice for your needs. Onyx is composed of silicon dioxide and is formed when chalcedony quartz cools slowly, while obsidian is composed of silicon dioxide and is formed when molten lava cools quickly. Onyx is usually found in a variety of colors, while obsidian is always black or dark brown. Onyx is usually harder than obsidian and is more durable, making it a better choice for jewelry and decorative items. Obsidian is brittle and easily breaks, so it is not the best choice for making jewelry or decorative items.
