rocks-and-gems-orange-calci Calcite comes in many colors. In addition to making jewelry, orange calcite is used for concrete bridges, highways, and buildings.… ← Previous Image Next Image → ↑ Return to post Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.