Description
- Included: one 1\" chunk of talc
- Clay mineral traditioally used in baby powders
- Associated with a hardness of 1 on the Moh\'s scale
- At a Moh\'s value of 1, can be scratched by a fingernail - soft and smooth texture
- Excellent specimen for the classroom
Talc is a clay mineral that, along with corn starch, was the primary ingredient of baby powders, often called simply talcum powder when talc was the main agent. Talc is also notable for its identification as the lowest possible hardness on the Moh\'s scale. With a value of 1, talc is so soft that it can be scratched by a finger nail.