Explora estas ideias e outras!

Explorar tópicos relacionados

Ametista - México

Ametista - México

Aquamarine.  Bruce CAIRNCROSS / Mineral Friends <3

Aquamarine. Bruce CAIRNCROSS / Mineral Friends <3

Amethyst, Rio Grande do Sul State, Brazil

Amethyst, Rio Grande do Sul State, Brazil

Amethyst / Mineral Friends <3

Amethyst / Mineral Friends <3

Marcasite (a sulfide mineral sometimes called white iron pyrite) with Pyrite, Arsenopyrite, Calcite and Dolomite. Marcasite and Pyrite are polymorphs. They have the same mineral composition but different crystal structures. Pyrite has a cubic structure and is hard enough to be used in jewelry, while Marcasite has an unstable orthorhombic crystal structure and is liable to break apart.

Marcasite (a sulfide mineral sometimes called white iron pyrite) with Pyrite, Arsenopyrite, Calcite and Dolomite. Marcasite and Pyrite are polymorphs. They have the same mineral composition but different crystal structures. Pyrite has a cubic structure and is hard enough to be used in jewelry, while Marcasite has an unstable orthorhombic crystal structure and is liable to break apart.

dogtooth calcite crystals atop the amethystine substrate Hubei province of China

dogtooth calcite crystals atop the amethystine substrate Hubei province of China

Watermelon Tourmaline cluster.  W O W ! ! !  From Sapo Mine, Golabeira, Doce Valley, Minas Gerais, Brazil

Watermelon Tourmaline cluster. W O W ! ! ! From Sapo Mine, Golabeira, Doce Valley, Minas Gerais, Brazil

Amethyst from Sardinia / Mineral Friends <3

Amethyst from Sardinia / Mineral Friends <3

Quartz with Wolframite inclusions & Fluorite

Quartz with Wolframite inclusions & Fluorite

Fluorite

Fluorite

Pinterest • O catálogo mundial de ideias
Search