20 thin sections of magmatic rocks acc. to coll. P50 / P53

20 igneous rocksSpecimen size: 60x90 mmarranged in collection boxesincluding wooden boxOur range of systematic rock collections includes all sizes, from small to large educational collections, providing the foundation for both introductory and advanced petrography courses.This collection includes:Igneous (e.g., pegmatite, granite, granodiorite, syenite, plagioclasites, feldspathic rocks, mafic rocks) and volcanic rocks (e.g., rhyolite, trachyte, latite, basalt, porphyry, selbergite, nephelinite, and pyroclastic rocks).The specimens are provided with labels indicating their exact name, age, and locality. A protective film covers each label to prevent scratching. All of the rocks are numbered so they can be easily re-identified if one is misplaced.The rocks in this collection are delivered in system-bloc collection boxes, which are arranged in a wooden crate.A detailed list of contents is included with each collection.The photo serves as an example; you will receive a collection of equivalent quality.This collection is handcrafted at Krantz in Bonn.

20 igneous rocksSample pieces: 90x120 mmSorted into collection boxes and delivered in a wooden caseOur range of systematic rock collections includes many options,from small to large educational collections, covering the basics for bothbeginner and advanced petrography courses.This collection includes:igneous rocks (e.g., pegmatite, granite, granodiorite, syenite, plagioclase rocks,feldspar rocks, mafic rocks)volcanic rocks (e.g., rhyolites, trachytes, latites, basalts, porphyrites, selbergites,nephelinites, and pyroclastites)The specimens are provided with labels indicating their exact name, age, and location. A protective film covers each label to prevent scratching. The rocks are numbered so they can be easily re-identified in case one is misplaced. This collection's specimens are delivered in System-bloc collection boxes, which are arranged in a wooden case.A detailed list of contents is included with each collection.The photo is for reference purposes; you will receive a collection of equivalent quality. All our collections are handcrafted in-house at Krantz, Bonn.

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 sedimentary rocksSpecimens: 60x90 mmarranged in collection boxes, packed in a wooden case.Our range of systematic rock collections includes everything from small to large educational collections, providing the foundation for both introductory and advanced petrography courses.This collection includes:Conglomerates and breccias – Psephites (e.g., quartz conglomerate, breccia)Sandstones – Psammites (e.g., sand, sandstone, quartzite)Silt and clay rocks – Pelites (e.g., clay, oil shale, loess)Carbonate rocks (e.g., limestone, chalk)Sediments (e.g., salt rocks, siliceous sediments such as flint, sedimentary phosphate rocks, residual rocks such as bauxite and coal)The samples are labelled with tags indicating the exact name, age, and locality. A protective film covers each label to prevent scratches. All rocks are numbered so they can be easily re-identified if one is misplaced. The collection is delivered in system-bloc collection boxes arranged inside a wooden crate.A detailed list of contents is included with every collection.The photo is for illustrative purposes only; you will receive a collection of equivalent quality. All of our collections are hand-crafted at the Krantz premises in Bonn.