Pencil leads and diamonds are chemically identical; the difference is in the crystal structure.

Martha Foley and Dr. Curt Stager talk about carbon crystals, and what it takes to form a natural diamond.

Pencil leads and diamonds are chemically identical; the difference is in the crystal structure. Martha Foley and Dr. Curt Stager talk about carbon crystals, and what it takes to form a natural diamond.

How are pencil leads and diamonds made from the same stuff?

Conversations about the natural world with Dr. Curt Stager and Martha Foley, from member-supported North Country Public Radio.

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How are pencil leads and diamonds made from the same stuff?

How are pencil leads and diamonds made from the same stuff?