Larimar Black or Petrified Palm 766 g

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.

Cube
Weight: 766 grams
Size: 2.75 x 2.25 x 2.75 Inches
Gemological Properties:
Chemical Elements: Ca, Fe, Ti, Sr
Crystal Structure: Calcite and Morimotoite
Color: Black, Green, White
Hardness: Typically 6.5 to 7
Refractive Index: NA
Density: 2.70 – 2.90
Cleavage: NA
Transparency: Opaque
Double Refraction or Birefringence:NA
Luster: Silky
Fluorescence: Weak: Red