Loading...

Trapiche

Trapiche Emeralds.
Trapiche Emeralds.

With a name derived from the Spanish word for a wheel used to mill sugarcane, a trapiche emerald has a hexagonal central area radiating alternating dark and green wedges. This segmented division results in a flower-like appearance. All known specimens to date were mined in Columbia at or near the Muzo mining district.

There are two types of trapiche emerald, the first is usually under two carats and has green banding composed of emerald. The second version can be larger, from two to fifty carats, and has black or grey (usually carbonaceous) banding, and is the more collectible option. The beauty of the pie slice-like banding determines the value. Some specimens exhibit mild chatoyancy and cutting to take advantage of this feature somethimes results in a “cat’s-eye emerald.” The fibrous inclusions that cause chatoyancy are considered a feature, while other inclusions are viewed as flaws. In addition, a fine rich green color is a factor in the most desirable stones.

Source

  • Federman, David. Gem Profile/2: The Second Sixty. Shawnee Mission, KS: Modern Jeweler, A Vance Corporation Publication, 1992.

Close Menu
×