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

20 igneous rockshand pieces: 60x90 mmin collector's boxes, including wooden caseIn our range of systematic rock collections we offer all varieties from small to large teaching collections, providing the basis for beginner and advanced petrographic courses.Included in this collection are igneous (e.g. pegmatite, granite, granodiorite, syenite, plagioclase, foidal rocks, mafite) and volcanic rocks (e.g. rhyolites, trachytes, latites, basalts, porphyrites, selbergites, nephelinites and pyroclastites).The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered making it easy to identify them again if one has been misplaced. The pieces of this collection are supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 igneous rockshand specimens: 90x120 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection containsigneous rocks (e.g. pegmatite, granite, granodiorite, syenite, plagioclase, foid rocks, mafite) volcanic rocks (e.g. rhyolites, trachytes, latites, basalts, porphyrites, selbergites, nephelinites and pyroclastites)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. All rocks are numbered, making it easy to identify them should one be misplaced. Supplied in system-bloc collectors' boxes which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

Summary: 7x to 45x zoom magnification, incident- and transmitted adjustable LED lightsEyepieces: two WF 10x/22 mm spectacle eyepieces, high eye pointTube: 45º angled view, one of the tubes is equipped with a diopter adjustmentEye distance: adjustable from 50 to 76 mmHead: 360º rotatableZoom lens: infinitely adjustable from 0,7x to 4,5xMagnification: 7x to 45xWorking distance: 108 mmFocusing: coarse drive, drive knobs on both sides with tension controlIllumination: adjustable LED for lighting, through and mixed light. 12V-15W. Incident light similar to 20W halogen light and transmitted light with 15W halogen.LED life: about 50,000 hoursConnection: 220V-230V. The circuit is protected by a fuse (1A/250V), detachable power cordSupplied with dust cover, eye protection, instruction manual, frosted glass pane and black/white pane

20 sedimentary rockshand pieces: 60x90 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, so that the basis for petrographic beginner and advanced courses can be found here.In this collection are included:Conglomerates and breccias - psephites (e.g. quartz conglomerate, breccia)Sandstones - Psammites (e.g. sand, sandstone, quartzite)Silt & 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 specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered making it easy to identify them again if one has been misplaced. The pieces of this collection are supplied in system-bloc collection boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.

20 metamorphic rockshand pieces: 60x90 mmin collectors' boxesdelivered in a wooden caseIn our range of systematic rock collections we offer all variations from small to large teaching collections, providing the basis for petrographic beginner and advanced courses.This collection containscontact 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)The specimens are labeled with the exact name, age and locality. A film is placed over each label to prevent scratching. The rocks are numbered making it easy to identify them should one be misplaced. All rocks of this collection are supplied in system-bloc collectors' boxes, which are arranged in a wooden case. A detailed list of contents is included with each collection.The photo serves as an example illustration, you will receive a collection of equivalent quality.