Classroom collection: 150 rocks (60x90 mm)

150 thin sectionsaccompanying the general rock collections P18 (handpieces 60x90 mm) or P19 (handpieces 90x120 mm) in a wooden box.The slides measure 28 x 48 mm and are fitted with cover glasses. They are numbered and labeled with adhesive labels indicating the exact name,  age, and location of discovery. They are delivered in a slotted thin section case. A detailed list of contents is included with each collection.Matching thin sections are available for all geological collections.

Product details:zoom magnification (extendable): 7x to 45x, continuously variableillumination: adjustable and controllable LED for reflected and transmitted light as well as mixed light; 12V-15W; reflected light illumination similar to 20W halogen illumination; transmitted light illumination similar to 15W halogeneyepieces: two WF 10x/22 mm eyepieces for spectacle wearers, high visual pointtube: 45º inclined view, one of the tubes with diopter adjustmentinterpupillary distance: adjustable from 50 to 76 mmhead: 360º rotatableworking distance: 108 mmfocusing: coarse drive, drive knobs on both sides with tension controlLED service life: approx. 50,000 hourspower source: 220V-230V, circuit protected by a fuse (1A/250V),detachable power cordDelivery includes dust cover, eyepieces, user manual, frosted glass plate, and black-and-white object plateWant to learn more about our Microscopes? Check it out!Colors in product photos may differ from those of the original product due to technical reasons.Our images serve as a reference; when you purchase, you will receive a product of equivalent quality.

20 metamorphic rocksSpecimens: 60x90 mmarranged in System-bloc collection boxes and delivered in a wooden caseWe offer a wide variety of systematic rock collections and teaching collections that provide a solid foundation for introductory and advanced petrography courses.This collection includes:contact rocks (e.g. fritted sandstone, fruit shale, chiastolite shale, hornfels, contact limestone)crystalline schists (e.g. gneiss, granulite, mica schist, phyllite, chlorite schist, talc schist, amphibolite & pyroxene, serpentinite, marble)All rock specimens are labeled to indicate their exact name, age, and locality. The System-bloc film covering each label prevents scratches and staining.The rocks are numbered so they can be easily re-identified if one of the specimens is removed.The collection is delivered arranged in System-bloc collection boxes, which arestored in a wooden crate.A detailed list of contents is included with each collection.Our collections are handcrafted in-house at Krantz in Bonn.Please note that rocks are natural products and no two pieces will everlook exactly alike.Due to technical limitations, colors in product photos may vary slightly from those of the original piece.Our images serve as a reference; when you purchase a collection, you will receive one of equivalent quality.