The New Student's Reference Work/Heliotrope (Bloodstone)

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See also Heliotrope (mineral) on Wikipedia, and the disclaimer.

2906944The New Student's Reference Work — Heliotrope (Bloodstone)

Heliotrope or Bloodstone is a variety of chalcedony or jasper. It is found in almost all parts of the world, but the finest specimens are brought from Asia.