13) Black Septarian Calcite Crystal Gemstone Cabochon Black Tourmaline With Mica -

Black Tourmaline With Mica - Brazil

Size : 10 x 11 x 15

Weight : 372 Grams approx

Weight : 525 grams

13) Black Septarian Calcite Crystal Gemstone Cabochon Black Tourmaline With Mica -Septarian Calcite Large Septarian Crystal, expertly polished and a very striking piece Size : 13 x 4. 5 x 9 cm approx. Weight : 962g approx. Location : Madagascar You will receive the exact crystal pictured Septarian: A result of volcanic eruptions, dead sea life was chemically attracted to the sediment around them, forming mud balls. As the ocean receded, the balls dried and cracked. Due to their bentonite content they also shrank in size and