Geosec Thin section microscope slide Kentallenite. Outstanding

Geosec Thin section microscope slide Kentallenite. Outstanding (image 1/1)
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Geosec Thin section microscope slide Kentallenite. Outstanding This is a thin section of Kentallenite, a rare rock collected from the type location at Kentallen, on the shores of Loch Linnhe, in Scoland. Contains Olivine augite, biotite, and both plagioclase and orthoclase feldspar. Spectacular under crossed filters, the different minerals show up well and are easy to identify except the feldspars, which are a little more challenging. An unusual rock and difficult to classify, probably best called an olivine monzonite. See page 105 Atlas of Igneous rocks, MacKenzie et al. Highly recommended slide , to form part of any collection of Scottish rocks. The photos do not do it justice.A Sample of the rock from which this slide was cut is also includedThe description is provided as a guide as to what to expect, but buyers should identify the rock type and minerals for themselves. Some features will require a polarising microscope to view. Slides are prepared with the greatest of care, ground to the correct thickness, and covered with a glass cover slip. However if you are not satisfied with any slide I will refund the purchase price (except the postage) if you return the slide within 7 daysSlides listed on this site are new, mostly made within a day or two of being listed. This means that the cement is crystal clear and not yellowed by read more
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