A specimen of green garnet from Vera Cruz, Mexico typically refers to Andradite (specifically the variety Demantoid or Topazolite) or Grossular garnets found in the state’s prolific mining districts like Las Minas and Tatatila.
 
While Vera Cruz is world-famous for its amethyst, its garnets are a connoisseur's choice. These specimens usually feature clusters of well-formed, dodecahedral crystals that range from a brilliant "lime green" to a deep, earthy "olive." They form in skarns—metamorphic zones where limestone has been altered by hot, mineral-rich fluids from nearby volcanic activity.
 
Mineral Profile
Variety: Usually Andradite (Calcium Iron Silicate). The presence of chromium creates the prized "Lush Green" demantoid color, while iron tends to lean the crystals toward golden-yellow or brownish-green.
 
Locality: Primary sources include the Cerro De La Concordia in Piedra Parada and the Las Minas municipality.
 
Crystal Habit: These garnets are known for their sharp, 12-sided (dodecahedron) or 24-sided (trapezohedron) shapes. In high-quality specimens, the crystal faces are incredibly reflective and "gemmy," meaning they have an internal clarity that glows under light.
 
Matrix: They are often found seated on a contrasting matrix of tan-colored rock, white calcite, or associated with green Epidote, which can make the specimen appear even "greener."
Visual Characteristics
Luster: These garnets have an adamantine (diamond-like) to vitreous luster. This gives them a superior "sparkle" compared to other green minerals like fluorite or apatite.
Color Range: Specimens from the Vera Cruz region often show a bi-colored or zoned effect, where the core might be a brownish-gold (topazolite) and the outer edges a bright, vibrant green (demantoid).
Hardness: 6.5 to 7 on the Mohs scale. They are physically tough, but as a crystal specimen, the sharp edges of the points should be handled with care to avoid "bruising" the terminations.