Top Ventas

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

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

Chemical formula S Crystalline system Rhombic, Monoclinic Class Minerals Elements ...

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

Species Heliophora Orbicularis Geological Period Pliocene ≈ 5.3 - 1.8 ma Origin Western Sahara , Mauritania ...

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 SiO2 _ Crystalline system trigonal Class oxides Origin Midelt...

Plastic floating frame display case with presentation stand. Made of plastic frame with durable PET membranes. There are two sizes to choose fro...

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

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

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

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

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

Rock Class Sedimentary rock Rock Subclass Detrital Origin Riba de Saelices, Guadalajara Size ...

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

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

Chemical formula CaCuAsO 4 (OH) Crystalline System Orthorhombic Class Arsen...

Chemical formula Sn O 2 Crystalline System Tetragonal Class Oxides ...

Chemical formula Na(NaCa)(Mg 3 Al 2 )(Si 6 Al 2 )O 22 F 2 Crystalline system monoclinic Class ...

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

Species araucariaceae Geological Period Paleogene ≈ 30 ma Origin Tulear, Madagascar Size...

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

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

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

Especie Neuropteris sp. Periodo Geológico  Carbonífero ≈ 315 m.a. Procedencia  Estados Unidos Tamaño  Mediano: 5,0-6,0 cm G...

Fórmula química Al₂O₃ Sistema Cristalino Trigonal Clase Óxidos Procedencia Hunan, China Tamaño Mediano: 2,00-3,00 cm G...

Clase de Roca Roca Ígnea Subclase de Roca Plutónica Procedencia Portugal Tamaño Pequeño: 1,50-2,50 cm Mediano: 2,50-4,00 cm Y...

Composición Dióxido de silicio, con impurezas de potasio, calcio, magnesio y aluminio Clase Tectita Coordenadas 15°33′N 108°...

Set of 10 self-assembling die-cut cardboard boxes of 4 x 4 cm. Classic die-cut cardboard boxes to keep your minerals, fossils and rocks in order....

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

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

Especie Cretolamna appendiculata Periodo Geológico Cretácico ≈ 80-70 m.a. Procedencia Marruecos Tamaño Diente: 3-4 cm aprox. Mat...

Species Family Araucariaceae Geological Period Oligocene ≈ 23 Ma Origin Sumatra, Indonesia ...

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

Chemical formula α-Fe 3+ O(OH) Crystalline System Orthorhombic Class Oxides ...

Fórmula química C Sistema Cristalino Cúbica Clase Elemento Nativo Procedencia Zimbawe Tamaño 3,00-4,00 mm Diaman...