Stones and Rocks

Introduction

http://geologywriter.com/blog/stories-in-stone-blog/rock-or-stone-is-there-a-difference/

Some rocks or stones I have.

Crystal structure, Number of elements, primitive cell (size etc), weight, hardness (Mohs).

Theory — Stones

Minerals, crystal structure, images, photos.

Agate

Ahhaat, Bahia Ahhaat. Agate. Akaatti.

Minerals: Chalcedony Quartz

Agates are primarily formed within volcanic and metamorphic rocks.

Crystal structure:

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• 
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Aragonite

Aragoniit. Aragonite. Aragoniitti

Minerals: Calcium carbonate, CaSO₃

Aragoniit is formed by biological and physical processes.

Crystal structure: Orthorombic

Point Group: Dipyramidal (mmm), H-M symbol: (2/m 2/m 2/m

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  Aragonite

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  Aragonite

Epidote

Epidoot preniidis musta turmaliiniga. Epidote. Epidootti

Minerals:

Crystal structure:

Glanaat

Glanaat

Minerals:

Crystal structure:

Jasper

Jaspis, punane. Jasper. Jaspis

Minerals:

Crystal structure:

Calcite

Kaltsiit. Calcite. Kalsiitti.

Minerals:

Crystal structure:

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  Calcite

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  Calcite

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  Calcite

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  White Calcite

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  White Calcite

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  White Calcite

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  White Calcite

Karneroc

Karneroc

Minerals:

Crystal structure:

Kunsiit

Kunsiit

Minerals:

Crystal structure:

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  Kunsiit

• 

  Kunsiit

• 

  Kunsiit

Labradorite

Labradoriit. Labradorite. Labradoriitti.

Minerals:

Crystal structure:

Leopardiit ??

Leopardiit Peruust

Minerals:

Crystal structure:

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  Leopardiit

• 

  Leopardiit

• 

  Leopardiit

Lignite

Ligniit. Lignite. Ruskohiili

Minerals:

Crystal structure:

Lipp??

Lipp, naturaalne.

Minerals:

Crystal structure:

Rutile

Rutiilkvarts must. Rutile. Rutiili.

Minerals:

Crystal structure:

Sapphire

Safiir. Sapphire. Safiiri.

Minerals:

Crystal structure:

Stromatolite

Stromatoliit Boliviast. Stromatolite. Stromatoliitti

Minerals:

Crystal structure:

Turritella

Turritella

Minerals:

Crystal structure:

Theory — Minerals

Kvarts

Kvarts, Girasol. Quartz. Kvartsi.

Quartz SiO₄ silicon-oxygen tetrahedra,

Minerals:

Crystal structure:

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  Quartz crystal, SiO₄.