Differences Between Black Onyx and Black Obsidian Explained

Discover the key differences between black onyx and black obsidian, including their properties and uses in jewelry.

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Black onyx and black obsidian are not the same. Black onyx is a banded variety of chalcedony, a type of quartz, recognized for its layered color bands. Black obsidian, however, is a natural volcanic glass formed from rapidly cooling lava, known for its glossy surface and sharp edges. While both are used in jewelry, their compositions and origins are different.

FAQs & Answers

  1. What is black onyx used for? Black onyx is often used in jewelry and decorative items, valued for its unique banded patterns and durability.
  2. Can black obsidian be polished? Yes, black obsidian can be polished to enhance its glossy appearance, making it a popular choice for jewelry and ornaments.
  3. Are black onyx and black obsidian birthstones? Black onyx is commonly associated with the birthstone for certain months, while black obsidian does not have a traditional birthstone designation.