Lexicon Minerals and Healing Stones

Ametrine - colors of amethyst and citrine combined

Ametrine – When Two Worlds Merge into One Stone Ametrine is a natural quartz mineral that combines the colors of amethyst and citrine in a single stone. This fascinating two-color appearance doe...

Obsidian - created by volcanoes

Obsidian Stone – Nature's Volcanic Glass The Obsidian Stone is no ordinary mineral – it is solidified volcanic glass. More precisely, obsidian forms when silicon-rich lava cools so quickly that ...

Pyrite (Fool's Gold / Fool's Gold)

Pyrite Fool's Gold: The Golden Mineral with Deceptive Potential Pyrite, also known as Fool's Gold or in German as Katzengold, is an iron-bearing sulfide mineral with the chemical formula FeS₂. I...

Moldavite stone: created by meteorites

Moldavite Stone: Cosmic Energy from the Bohemian Basin The moldavite stone is a natural tektite glass that formed approximately 14.7 million years ago from a meteorite impact in what is now Bava...

Pyrite vs. Rainbow Pyrite – A Mineralogical Comparison

Pyrite and Rainbow Pyrite: What's Behind These Fascinating Minerals? Pyrite and Rainbow Pyrite are, mineralogically speaking, the same mineral – iron sulfide with the chemical formula FeS₂. The ...

Rock crystal - fascinating and versatile gemstone

Rock Crystal: Definition, Properties, and Fascinating Variety Rock crystal is a colorless, transparent variety of the mineral quartz (SiO₂) with a Mohs hardness of 7 and a trigonal crystal syste...

Aquamarine - magical blue gemstone

In short: Aquamarine is the blue-green to sky-blue variety of beryl, colored by traces of iron in its crystal lattice. With a Mohs hardness of 7.5 to 8, it is hard and suitable for everyday wear. T...

Chrysocolla: Fascinating gemstone with unique color variety

Chrysocolla – The Blue Wonder Stone from the Copper Ore Deposits of the World Chrysocolla is a fascinating blue-green copper silicate mineral with the chemical formula Cu₂H₂Si₂O₅(OH)₄. The stone...

Spirit quartz from Boekenhouthoek, South Africa

Spirit Quartz – The Magical Crystal from Boekenhouthoek, South Africa Spirit Quartz is an extraordinary quartz mineral from the Limpopo Province in South Africa. It consists of a central main cr...

citrine

Citrine Stone – Definition, Origin, and Mineralogical Classification The Citrine Stone is a golden yellow to orange-brown variety of the mineral quartz with the chemical formula SiO₂. Its charac...