Description
Turmaline und Achate
Mineralklasse: Ringsilikate (Cyclosilikate)
Bergkristall hat keine ausgeprägte Spaltbarkeit
a process called pseudomorphism that creates the characteristic chatoyant effect
it is said to help organize thoughts
Bergkristall Stufe (387g) Septarie Turmaline und AchateThe Rock crystal is a fascinating gemstone that has special meaning in different cultures. Here are some important properties of rock crystal: Chemical composition : Rock crystal belongs to the quartz group and consists mainly of silicon dioxide (SiO ) . Crystal system : Rock crystal crystallizes in the trigonal crystal system and forms prismatic crystals with six sides and pyramidal ends. Double terminated crystals are common. Color and transparency