This specimen comes from the same vain as the Larimar. The locals call it black Larimar, Black Larimar is actually Petrified Palm. This material can have Blue, white or red Pectolite in it.
Although is more scares than Larimar it has much less value than Larimar.
Carbon: Rough Specimen polished on top
Weight: 4144 grams Over 4 kilos
Size: 5 x 3 x 1.10 inches
Chemical Elements: Ca, Fe, Ti, Sr
Crystal Structure: Calcite
Color: Black, Green
Hardness: Typically 4.5 to 5
Refractive Index: NA
Density: 2.70 – 2.90
Double Refraction or Birefringence:NA
Fluorescence: Weak: Red