Obsidian Kugeln aus Mexiko Stern It can scratch simple window

It can scratch simple window glass

Er besitzt eine Mohs-Härte von 6

Heilsteinfreunde

Genau das macht jeden Stein zu einem unverwechselbaren Begleiter

Obsidian is composed primarily of SiO2 (silicon dioxide)

Obsidian Kugeln aus Mexiko Stern It can scratch simple windowAmethyst , a jewel of natural beauty, is the violet variety of the mineral quartz. Like quartz, this gemstone consists of silicon dioxide (SiO2), but with additional small amounts of color giving iron . Amethyst is a versatile gemstone that is both aesthetically and energetically valuable. It crystallizes in the trigonal crystal system and forms prismatic, long crystals. This beautiful specimen is a geode with a beautiful crystal structure, making it