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Chemical formula (Na,Ca)(Al,Fe,Li)(Al,Mg,Mn) 6 (BO 3 ) 3 (Si 6 O 18 ).(OH,F) 4 Crystalline system trigonal...

Fórmula química (Na,Ca)(Al,Fe,Li)(Al,Mg,Mn)6(BO3)3(Si6O18).(OH,F)4 Sistema Cristalino Trigonal, Hexagonal Clase Silicatos ...

Fórmula química SiO2 Sistema Cristalino Trigonal, Hexagonal Clase Óxidos Procedencia Minas Gerais, Brasil Tamaño Med...

Chemical formula Faith 7 S 8 Crystalline System Hexagonal, Monoclinic Class ...

Chemical formula (Mn 2+ )SiO 3 Crystalline System Tetragonal Class Oxides ...

Chemical formula (Mn 2+ )SiO 3 Crystalline System Tetragonal Class Oxides ...

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

Chemical formula Ca 2 Fe 3+ Al 2 (Si 2 O 7 )(SiO 4 )O(OH) Crystalline System Monoclinic ...

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

Chemical formula SiO 2 Crystalline System Trigonal Class Oxides Or...

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

Chemical formula Sb 2 S 3 1 Crystalline system orthorhombic Class sulphides Origin ...

Chemical formula Al 2 OSiO 5 Crystalline system orthorhombic Class Silicate Or...

Especie  Mosasaurus sp. Periodo Geológico  Cretácico Superior ≈ 70 - 66 m.a. Procedencia  Kem Kem, Taouz, Marruecos Tamaño Dient...

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

Species Trigonia sp. Geological Period Jurassic ≈ 180 ma Origin Peniche, Portugal Size ...

Species Tylostoma sp. Geological Period Lower Cretaceous ≈ 100-146 ma Origin Levante, Spain ...

Chemical formula LiAlSi 2 OR 6 Crystalline system monoclinic Class silicates Orig...

Species Heteraster sp. Geological Period Lower Cretaceous ≈ 119 ma Origin Midlet, Morocco Size 3.0 x ...

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

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

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

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

Especie Familia Araucariaceae Periodo Geológico Eoceno ≈ 35 - 40 m.a. Procedencia  Mina La Bucara, República Dominicana Tamañ...

Chemical formula SiO2 _ Crystalline system trigonal Class oxides Origin Rio Gr...

Chemical formula pbCO 3 Crystalline system orthorhombic Class carbonates Origin ...

Fórmula química CaF2 Sistema Cristalino Cúbico, Octaedro, Rombododecaedro Clase Halogenuros Procedencia Hunan, China T...

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

Descubre el universo en tus manos con esta fascinante colección de 4 auténticos meteoritos. Cada pieza ha sido seleccionada para mostrar la diversi...

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 ...