Novedades

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

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

Chemical formula CaF 2 Crystalline system Octahedron Class halides Origin Hunan,...

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

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

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

Species Exogyra sp. Geological Period Jurassic - Cretaceous ≈ 100 ma Origin Estoril, Portugal ...

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

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

Species Typlasma Loveni Geological Period Ordovician ≈ 450 ma Origin Erfoud, Morocco Si...

Species Family Belemnoidea Geological Period Jurassic ≈ 180 ma Origin Peniche, Portugal ...

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

Species Fusus Burdigalensis Geological Period Miocene ≈ 20 ma Origin Bordeaux, France S...

Species Turritella Terebralis Geological Period Miocene ≈ 20 Ma Origin Bordeaux, France ...

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

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

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

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 (Mg,Fe,Ni) 3 Si 2 O 5 (OH) 4 Crystalline system monoclinic Class sili...

Chemical formula (Na,Ca)Al 2 Si 2 O 8 Crystalline system triclinic Class silicates ...

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

Chemical formula CO3 (Ca,Mn) Crystalline system trigonal Class carbonates Origin ...

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

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

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

Chemical formula Be 3 Al 2 (SiO 3 ) 6 Crystalline system Hexagonal Class silicates ...

Chemical formula Mg 3 Si 2 O 5 (OH) 4 Crystalline system monoclinic Class Silicate ...

Chemical formula SiO2 _ Crystalline system Hexagonal / Trigonal Class oxides ...

Crystalline system Amorphous Class Organics - Hydrocarbons Origin Villaviciosa, Asturias Si...

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

Chemical formula Faith 2 OR 3 Crystalline system trigonal Class oxides Origin N...

Chemical formula Cu3 ( CO3 ) 2 (OH) 2 Crystalline system monoclinic Class carbonates ...

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

Chemical formula (Ca,Fe,Mg,Mn) 3 (Al, Fe, Mn,Cr,Ti,V) 2 (SiO 4 ) 3 Crystalline System Isometric ...