What is the predominant color and structure of Crocidolite?

• A. Blue; long and straight.
• B. White; short and curly.
• C. Brown; long and curly.
• D. Gray; short and straight.

Answer: (A)

Crocidolite is blue asbestos, so its color is blue. The fibers form as long, straight, needle-like strands, which is the typical fiber morphology for this mineral. This combination—blue color and long, straight fibers—sets it apart from other asbestos types, such as white asbestos, which has curly fibers.