Products

Species brachiosaurus Geological Period Jurassic ≈ 160 ma Origin Arizona, United States ...

Species Mammuthus primigenius Geological Period Miocene ≈ 6 mya Origin Siberia, Russia ...

Rock Class Sedimentary rock Rock Subclass Chemical and Organogenic Origin Olot, Girona Size 2.0-3.0cm...

Chemical formula Fe 2+ Ti 4+ O 3 Crystalline system trigonal Class oxides Origin I...

Chemical formula SiO2 _ Crystalline system trigonal, hexagonal Class oxides Ori...

Chemical formula Na(Al,Fe 3+ )Si 2 O 6 Crystalline system monoclinic Class silicates...

Chemical formula Na(Al,Fe 3+ )Si 2 O 6 Crystalline system monoclinic Class silicates...

Chemical formula KFe 3+ 3 (SO 4 ) 2 (OH) 6 Crystalline system trigonal Class Sulfates ...

Rock Class Sedimentary rock Rock Subclass Chemical and Organogenic Origin Kashmir, India Size Mediu...

Rock Class Sedimentary rock Rock Subclass Chemical and Organogenic Origin Kashmir, India Size Mediu...

Chemical formula SiO2 _ Crystalline system Amorphous Class oxides Origin ...

Rock Class Sedimentary rock Rock Subclass Chemical and Organogenic Origin Mooka, Australia Si...

Chemical formula SiO2 _ Crystalline system Amorphous Class oxides Origin Mooka...

Rock Class Sedimentary rock Rock Subclass Chemical and Organogenic Origin Kashmir, India Size Mediu...

Chemical formula SiO2 _ Crystalline system Amorphous Class oxides Origin ...

Fórmula química LiAl(SiO3)2 Sistema Cristalino Monoclínico Clase Silicatos Procedencia Kunar, Afganistán Tamaño 3,0-4...

Fórmula química LiAl(SiO3)2 Sistema Cristalino Monoclínico Clase Silicatos Procedencia Kunar, Afganistán Tamaño 2,0-3...

Chemical formula (Ca,Na)(Si,Al) 4 OR 8 Crystalline system triclinic Class silicates ...

Chemical formula (Ca,Na)(Si,Al) 4 OR 8 Crystalline system triclinic Class silicates ...

Chemical formula (Ca,Na)(Si,Al) 4 OR 8 Crystalline system triclinic Class silicates ...

Rock Class metamorphic rock Rock Subclass contact metamorphism Origin Sar E Sang, Badakhshan, Afghanistan ...

Rock Class metamorphic rock Rock Subclass contact metamorphism Origin Sar-E-Sang, Afghanistan Size 2.0-...

Chemical formula NaCa 2 (Si 3 O 8 )(OH) Crystalline system triclinic Class silicat...

Chemical formula SiO2 _ Crystalline system trigonal Class oxides Origin Minas...

Chemical formula K(Li,Al) 3 (Si,Al) 4 O 10 (F,OH) 2 Crystalline system monoclinic Class ...

This book is a basic pocket Guide to learn to differentiate Minerals, Rocks and Precious Stones. As a beginner's guide, it exposes the basic cha...

This book is a basic pocket Guide to learn to differentiate Minerals, Rocks and Precious Stones. As a beginner's guide, it exposes the basic cha...

Chemical formula FeO(OH)·nH 2 O Crystalline System Amorphous Class Oxides...

Chemical formula FeO(OH) nH2O Crystalline system Amorphous Class oxides Origin ...

Chemical formula FeO(OH) nH2O Crystalline system Amorphous Class oxides Origin ...

Practical metal magnifying glass with 40x magnification, of scientific quality. The magnifying glass is foldable to protect the glass and is an op...

Practical metal magnifying glass with 40x magnification, of scientific quality. The magnifying glass is foldable to protect the glass and is an op...

Chemical formula MgCO 3 Crystalline system trigonal Class carbonates Origin Eugui,...

Chemical formula Fe 2+ Fe 3+ 2 O 4 Crystalline System Isometric Class Oxides ...

Chemical formula Fe 2+ Fe 3+ 2 OR 4 Crystalline system isometric Class oxides O...

Chemical formula Cu2CO3 ( OH ) 2 _ Crystalline system monoclinic Class carbonates ...