Rocks & Minerals

Sandstone is the second most common sedimentary rock after ...

Chemical Formula: (Ba,H2O)Mn10,O10 Class: Hydrous Oxides Hardness: 5-6 Coloration: Iron ...

Rhodonite are identified by it’s bright rose color. ...

Staurolite is a dull and generally pitted. Chemical ...

Sodalite gets its name from its high sodium content. ...

Topaz is a hard crystal that comes in a ...

Sulfur is a very common element, the ninth most ...

Talc is the softest mineral, with a hardness of ...

Tourmaline is a very complex mineral group with a ...

Stilbite forms in the cavities of large basalt lava ...