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Oligoclase Stock Photos and Images
RM2A3D38F–Skiddaw Granite - a medium-grained biotite granite comprising orthoclase, oligoclase, quartz and biotite
RMTR983T–Rapakivi Granite - a hornblende-biotite granite containing large round crystals of orthoclase each with a rim of oligoclase (a variety of plagioclase)
RMKJ5FGB–A sample of Rapakivi granite, a hornblende-biotite granite containing large rounded crystals of orthoclase each with a rim of oligoclase. Dated 21st Century
RFKG6881–macro shooting of natural mineral rock specimen - polished moonstone gemstone on dark granite background
RFTAXW74–Glossy polished abstract texture of rapakivi granite consists of oligoclase, orthoclase, idiomorphic quartz with black coral chaotic splashes.
RF2M4D6CW–Macro close up colour photograph of 'Sunstone' a semi precious crystal gemstone used in crystal healing therapy. Mineral variety of Oligoclase, Sodium
RM2A972F2–Skiddaw Granite - a medium-grained biotite granite comprising orthoclase, oligoclase, quartz and biotite
RFM8N42C–Macro shooting of natural gemstone. The raw mineral is albite, Brazil. Isolated object on a white background.
RMH3WPYW–A sample of Oligoclase is a rock-forming mineral belonging to the plagioclase feldspars. Dated 21st Century
RM2BNE116–Rapakivi granite, a hornblende biotite granite containing large rounded crystals of orthoclase mantled with oligoclase, Finland.
RFKG6885–macro shooting of natural mineral rock specimen - tumbled moonstone gemstone on dark granite background
RFFYXX01–macro shooting of natural mineral stone - tumbled Sunstone (Heliolite, plagioclase feldspar, Oligoclase, orthoclase) gemstone is
RM2BF22DD–Silicate Mineral Plagioclase. This object is part of the Education and Outreach collection, some of which are in the Q?rius science education center and available to see.114 Jan 2020
RF2WWBWC6–close up of sample of natural stone from geological collection - unpolished oligoclase mineral isolated on white background from North Karelia
RFMFP53B–Macro shooting of natural gemstone. The raw mineral is albite, Brazil. Isolated object on a white background.
RM2JDF2EY–Oligoclase. minerals. North America; Canada; Quebec; Pontiac County; Otter Lake; Sandy Creek, Yates Uranium Mine
RM2AM36YA–Bulletin de l'Institut français d'archéologie orientale . ;?û/^ Bulletin, T. VII. PI. II. I- — Section mince dans le porphyre antique vue au microscope, faiblegrossissement. F, feldspath oligoclase-andésine ; /; même feldspathmais microlitique ; A, amphibole hornblende ; W, withamite.
RMH3WPY3–A sample of schist, a medium to coarse-grained, foliated, metamorphic rock typically containing muscovite, biotite, chlorite, and quartz. Feldspar, usually albite or oligoclase, also commonly occurs. Dated 20th Century
RF2WWBWBW–close up of sample of natural stone from geological collection - raw oligoclase mineral isolated on white background from North Karelia
RFFYXX06–macro shooting of natural mineral stone - polished Sunstone (Heliolite, plagioclase feldspar, Oligoclase, orthoclase) gemstone i
RFFF4Y97–macro shooting of natural mineral stone - Belomorite (moonstone, feldspar or oligoclase albit) rock isolated on white background
RFM72E77–Macro shooting of natural gemstone. Raw mineral ruby in albite. Karelia. Isolated object on a white background.
RFR4C0ME–macro photography of natural mineral from geological collection - tumbled albite (moonstone) gemstone on white background
RM2AM36KR–Bulletin de l'Institut français d'archéologie orientale . I- — Section mince dans le porphyre antique vue au microscope, faiblegrossissement. F, feldspath oligoclase-andésine ; /; même feldspathmais microlitique ; A, amphibole hornblende ; W, withamite.. II. - Anorthosite vue au microscope à la lumière polariséA, amphibole ; F, feldspath bytownite. rfaouitypiff IWrthaiiJ. Ptrii Biillelin, T. VIL PI. III
RMH3WPDE–A sample of schist, a medium to coarse-grained, foliated, metamorphic rock typically containing muscovite, biotite, chlorite, and quartz. Feldspar, usually albite or oligoclase, also commonly occurs. Dated 20th Century
RFFF4Y98–macro shooting of natural mineral stone - Belomorite (moonstone, feldspar or oligoclase albit) gem stone isolated on white backg
RFMP7WH2–Macro shooting of natural gemstone. Raw mineral ruby in albite. Karelia. Isolated object on a white background.
RFR4BYD5–macro photography of natural mineral from geological collection - tumbled albite (moonstone) stone on white background
RM2AN5C3H–The Quarterly journal of the Geological Society of London . ons to determine the biaxial character of the crystals.Similar brightly polarizing crystals have been frequently observed.Dr. Hatch, for example, refers them to muscovite or kaolin *.riagioclase is represented in the Soul granite by smaller crystalsexhibiting extinction-angles agreeing with those of oligoclase.Albite and muscovite are found associated as secondary products,infilling cracks in the rock. Most of the biotite originally existingin the rock has been converted into chlorite, which exhibits thepleochroism : E = yellowish-gre
RFFF50C8–macro shooting of natural mineral stone - two pieces of Belomorite (moonstone, feldspar or oligoclase albit) rock isolated on wh
RFM72E6T–Macro shooting of natural gemstone. Raw mineral ruby in albite. Karelia. Isolated object on a white background.
RF2WWBTXW–close up of sample of natural stone from geological collection - unpolished heliolite (sunstone) mineral isolated on white background
RFR4C0MP–macro photography of natural mineral from geological collection - polished albite (moonstone) gemstone on white background
RM2AG3GCJ–. The geology of the goldfields of British Guiana. rocks fromaplite, through granite and granitite, to rocks approximatingin composition to syenite and to diorite. Basic Secretions in the Granitites—In certain of the masses of thegranitites segregation-patches occur which are of much darker colourand of higher specific gravity than the bulk of the rock. The patchesare, as a rule, of finer grain and closer texture than the rock from whichthey have segregated. They consist of plates of oligoclase with inclu-sions of sericite and epidote, some plates of orthoclase, and a few patchesof microcline;
RFM99RWR–Macro shooting of natural gemstone. The raw mineral is albite, Brazil. Isolated object on a white background.
RF2WWBTXP–close up of sample of natural stone from geological collection - raw heliolite (sunstone) mineral isolated on white background
RFKC38RJ–set of various natural mineral polished Andesine (sunstone, heliolite) gemstones isolated on white background
RFR4BYCN–macro photography of natural mineral from geological collection - polished albite (moonstone) stone on white background
RM2AG3HBD–. The geology of the goldfields of British Guiana. present in gneissose granites. A few grains of sphene,raiely minute crystals of zircon and some granules of iron-ore aresparsely present. Granitite.—-The varieties of granitite have been studied with thefollowing results :— (a) Grey Granitite.—-This is usually very coarse-textured, in placeswith the development of large porphyritic crystals of ortho-clase, or less commonly of oligoclase. It ranges in specificgravity from 2-61 to 2-74, according to the projwrtion ofbiotite it contains. Under the microscope it is seen to be made up of large plat
RFKC38RK–set of various Sunstone gemstones (Andesine, Heliolite, red Aventurine, Goldstone) isolated on white background
RM2AJ4BW5–Transactions . Silver of James Township 265 feldspathic material. In the thin sections examined by him,representing several of these veins from the western part of Tud-hope and the central part of James township, by far the largestproportion at least was plagioclase varying in composition fromalbite through oligoclase to andesine. This diagnosis was cor-roborated in part by a separation of the mineral constituents bymeans of a heavy solution. The plagioclase thus separated variedin specific gravity from 2.609 to 2.635. Some of this plagioclase(albite) had distinct rectangular or lath-like outl
RFKC38RF–macro shooting of natural mineral stone - polished Andesine (sunstone, heliolite) gemstone isolated on white background
RM2AXH47B–Minerals in rock sections; the practical methods of identifying minerals in rock sections with the microscope, especially arranged for students in technical and scientific schools . Fig. 71. — Plagioclase, showing Ijroad lamellee, in gabbro. (From Cohen. of microcline, Fig. 72. In addition the polysynthetic crystals maybe twinned like orthoclase after Carlsbad and Baveno laws. IIBRARTyWIVERSITY CF CALIFOI^NIA R 102 CHARACTERS OF MINERALS. The general characters are the same as in orthoclase with thefollowing differences : Indices of Refraction :;/= 1.535 Albite. n = 1.541 Oligoclase, Ab^An,.n
Search Results for Oligoclase Stock Photos and Images (136)
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