16) Black Septarian Calcite Crystal Tormalated Quartz Its formation is a result

Its formation is a result of the slow crystallization of magma deep within the Earth's crust

Size : 11 x 6 x 7 cm approx

Average Weight : 310g approx

Weight: 509g

16) Black Septarian Calcite Crystal Tormalated Quartz Its formation is a resultSeptarian Calcite Large Septarian Crystal, expertly polished and a very striking piece Size : 12. 5 x 5 x 8 cm approx. Weight : 920g 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