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Duotone bay — asphalt brief on the left, yellow-folded service sheet on the right.
Mohs Hardness: 3 (relatively soft
Aderzeichnung und Kristallisation variieren
Children will be thrilled when they open the chest and discover the sparkling treasures
The product photos show representative examples
Cavansite is a rare calcium vanadium silicate hydrate mineral known for its intense blue-turquoise color
Bergkristall Handstufe aus Indonesien (239g) Ajoit Mohs Hardness: 3 (relatively softThe 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