The ‘Guide to Common Minerals’ is designed for use in the field, classroom and laboratory, this 12-page chart features clear colour photographs of 71 common minerals. A comprehensive table gives an overview of the colour, hardness, lustre, mineral habit, cleavage and fracture properties of the minerals pictured. Information on the field occurrence, formation and economic uses of minerals is also included. Clear colour illustrations and text by experts in the subject make these valuable resources for all age groups.
Agglomerate igneous rock specimens from Scotland, UK. A coarse grained, hard blocky rock exhibiting a conglomeration of various minerals and igneous material of volcanic origin. These samples formed part of the Glen Coe caldera and are apart of the upper streaky andesite unit, the exhibit poor sorting and orientation of material which indicates a somewhat violent origin but this can vary from agglomerates by location and is mainly down to the chemistry of the igneous material. The samples are available in 3 sizes and come supplied in a card tray with a label, they are suitable for educational use to show the different types of volcanic rocks produced as well as those interested in collecting rock samples.
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.
Dunite igneous rock specimens from the Gusdal olivine pit in Åheim, southern Norway. Composed of green olivine minerals with chromite and pyroxene crystals, the rock forms as intrusive igneous plutons in the earth mantle down to 400 km deep and displays a coarse texture and green colouration. Overall, the samples are fairly granular and weak due to their chemistry and form part of the basal gneiss complex of southern Norway. Ideal for various levels of collectors and for higher level education and research use, the samples are available in three sizes and come supplied in a card tray with an information label.
Trachyte, a common igneous rock composed of various minerals including quartz, feldpsars, micas and olivine, rock specimens come from East Lothian, Scotland and are available in optional sizes, supplied in a card tray with a label.
A triplet hand lens with ultraviolet (UV) capabilities, this magnifier boasts triplet optics (3 pieces of glass) to enhance the viewing quality along with excellent x 10 magnification and a generous 21 mm field of view. The loupe has a body made of stainless steel and a plastic housing, on which there is a ringe LED UV light but also a ring of white LED lights too (for viewing in low light conditions). The ultraviolet light is extremely useful for both geologists, gemologists and entomologists, as minerals, gemstones or insects which fluoresce will be visible under the light and fluoresce their respective colours, aiding in identification or location. The lens uses three LR297 button batteries, which are provided and comes in with a faux leather case and a small gift box.