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Although the name grape agate is a marketing gimmick
aragonite is sensitive to water – please store it in a dry place and clean it with a cloth
um die Oberfläche zu schonen
It crystallizes in the Orthorhombic crystal system with the chemical composition Ca[V 4+ O|Si 4 O 10 ] · 4H 2 O
die Sammlerherzen höherschlagen lässt
Himalaya Quartz (Bergkristall) aus dem Skardu Tal in Pakistan (160g) Kärnten Although the name grape agateThe Himalaya Quartz (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, the ends of which taper pyramidally. Double enders are common.
