Basalt igneous rock specimens from, Ireland, which formed during the Tertiary period approximately 60 million years ago. A dense, fine crystalline, dark coloured rock which forms at extrusive igneous bodies and contains olivine alongside with various pyroxene minerals such as augite along with plagioclase as well. The samples are available in 3 sizes and come supplied in a white card specimen tray with a label. Being so common and an important igneous rock, it is suitable for educational use as they are one of the introductory and staple rocks that students are often shown when entering earth sciences.
Specimens of calcite crystal beds of varying colours from Milldam Mine, Derbyshire, UK. These ideal specimens for collectors of British minerals are supplied in a white card tray with an information label.
Chalcopyrite mineral specimens from France, they display a very pure chalcopyrite in a quartz matrix and may also show small amounts of peacock ore. The mineral its self is a major source of copper ore and mined around the world for a wide variety of uses, The samples are supplied in a white card tray with an information label, these pieces would make an excellent addition to any mineral collection though they could also serve as a educational specimen.
Specimens of fluorite crystal beds from Worton Hall Mine, Bainbridge, Wensleydale, Yorkshire, UK. These pieces of fluorite vary in colour from purple to clear or faint yellow, with some specimens containing marcasite inclusions. These samples are a must have for any British mineral collector, though the good quality of these specimens makes them ideal for any collection. Specimens are supplied in a white card tray with an information label.