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

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

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

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

Chemical formula AC 2-3 T 4 O 10 X 2 Crystalline system monoclinic Class silicates ...

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

Especie Ammonites Dactylioceras Periodo Geológico Jurásico inferior ≈ 172 m.a. Procedencia Schlaifhausen, Alemania Tamaño Mediano...

Species Heterodont bivalve Geological Period Jurassic ≈ 160-200 ma Origin France Size ...

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

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

Chemical formula Ca 2 SiB 5 O 9 (OH) 5 Crystalline system monoclinic Class borates ...

Chemical formula Na(Li,Al) 3 Al 6 (BO 3 ) 3 Si 6 O 18 (OH) 4 Crystalline system trigonal Cla...

Species Strombus Bubonius Geological Period Middle Pleistocene ≈ 0.12 -0.78 ma Origin Erfoud, Moroc...

Presentation Wooden box with 16 compartments and transparent methacrylate sliding lid. informative label Name, Classificati...

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

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

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

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

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

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

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 Origin Cabo de Gata, Almeria Size Medium: ...

Fórmula química BaSO4 Sistema Cristalino Ortorrómbico Clase Sulfatos Procedencia Madan, Bulgaria Tamaño 2,0-3,0 cm ...

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

Chemical formula Pb 5 (PO 4 ) 3 Cl Crystalline system Hexagonal Class phosphates ...

Chemical formula (Mg,Fe) 2 Al 4 Yes 5 O 18 Crystalline system orthorhombic Class silic...

Chemical formula Ca 2 Fe 3+ Al 2 (Si 2 O 7 )(SiO 4 )O(OH) Crystalline system monoclinic Class ...

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

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

Chemical formula Na(Li,Al) 3 Al 6 (BO 3 ) 3 Si 6 O 18 (OH) 4 Crystalline system trigonal Cla...

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

Chemical formula CASO 4 ·2H 2 O Crystalline System Monoclinic Class Sulfates ...

Chemical formula Mg 4 Si 6 O 15 (OH) 2 ·6H 2 O Crystalline System Orthorhombic Class ...

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