Top Ventas

Especie  Flexicalymene Ouzregui sp Periodo Geológico  Ordovícico Superior ≈ 449-443,7 m.a. Procedencia  Erfoud, Marruecos Tam...

Chemical formula CaCO 3 Crystalline system rhombohedral Class carbonates Ori...

Chemical formula SiO2 • nH2O Crystalline system Amorphous Class Silicates - Mineraloid ...

Chemical formula NaFe + 3 Si 2 O 6 Crystalline system monoclinic Class silicates O...

Species Otodus Obliquus Geological Period Eocene ≈ 45-55 ma Origin Oued Zem, Khouribga, Morocco Size ...

Chemical formula SiO 2 Crystalline System Hexagonal/Trigonal Class Oxides ...

Chemical formula SiO 2 Crystalline System Trigonal, Hexagonal Class Oxides ...

Soporte de plástico en forma de "ele" compuesto de dos piezas correderas para poder ajustar la anchura en función de la pieza. Hay dos tamaños entr...

Presentation Wooden box with 20 compartments and transparent methacrylate sliding lid. Information label Name, Chemical...

Presentation Wooden box with 20 compartments and transparent methacrylate sliding lid. informative label Name, Classificatio...

Species Hymenaea verrucosa Geological Period ≈ 0.15 to 2 ma Origin Tulear, Madagascar S...

Chemical formula SiO2 • nH2O Crystalline system Amorphous Class Silicates - Mineraloid ...

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

Chemical formula Al2O3 : Cr Crystalline system trigonal Class oxides Origin Arush...

Chemical formula SiO2 • nH2O Crystalline system Amorphous Class Silicates - Mineraloid ...

Especie Pleurotomaria Periodo Geológico Jurásico ≈ 167,7-164,7 m.a. Procedencia Portugal Tamaño Mediano: 4,0 - 6,0 cm Grand...

Fórmula química Zn₄Si₂O₇(OH)₂·H₂O Sistema Cristalino Ortorrómbico Clase Silicatos Procedencia Hunan, China Tamaño 2,...

Fórmula química SiO2 Sistema Cristalino Trigonal, Hexagonal Clase Óxidos Procedencia Tata, Marruecos Tamaño 2,0-3,0 c...

Fórmula química SiO2 Sistema Cristalino Trigonal Clase Silicatos Procedencia Ngabu, Malawi Tamaño 2,0-3,0 cm Masiv...

Chemical formula CaSO 4 ·2H 2 O Crystalline system monoclinic Class Sulfates Origi...

Chemical formula CaF 2 Crystalline system Cubic, Octahedron, Rhombododecahedron Class ...

Chemical formula Al2SiO5 _ _ _ Crystalline system triclinic Class silicates Ori...

Chemical formula KAlSi 3 OR 8 Crystalline system Monoclinic/Triclinic Class silica...

Presentation Green poplar wood box with transparent methacrylate sliding lid. Information label Name and Origin ...

Chemical formula FeS 2 Crystalline System Cubic Class Sulfides Origin Nav...

Chemical formula AC 2-3 T 4 O 10 X 2 Crystalline System Monoclinic Class Si...

Chemical formula KAlSi 3 OR 8 Crystalline system Monoclinic/Triclinic Class silicat...

Chemical formula Be 3 Al 2 (SiO 6 ) 18 Crystalline System Hexagonal Class Sil...

Especie  Flexicalymene Ouzregui sp Periodo Geológico  Cámbrico medio ≈ 510–499 m.a. Procedencia  Estratos de Jince, Rejkovice, Re...

Species Tellina sp. Geological Period Jurassic ≈ 160 ma Origin Mahajanga, Madagascar Si...

Species Maugerii Terebratula Geological Period Miocene ≈ 20 ma Origin Cadiz, Spain Size ...

Rock Class igneous rock Rock Subclass Volcanic (volcanic glass) Origin Hidalgo, Mexico Size Medium:...

Chemical formula SiO 2 Crystalline System Trigonal, Hexagonal Class Oxides ...

Species Ammonite Cleoniceras sp. Geological Period Lower Albian Cretaceous ≈ 100.5 ma Origin Mahajanga, Mada...

Presentation Wooden box with 12 compartments and transparent methacrylate sliding lid. Information label Name, Formula,...

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