 | | Report (issue) | | ......................................... 9 Ilmenite ................................................general, progressive from south to north) if the locality is described in the text or table 1. Most of...region (diamond locality 10) and noted the association of diamonds and magneto-ilmenite (Terpstra, 1937...the map. Kimberlite indicator minerals, picro-ilmenite and(or) pyrope garnet, are generally abundant...surfaces. Bauxite float has been reported at one locality near Jawajei Mavou in the southwest part of the |  | | Journal (article/letter/editorial) | | or pccket, associated with quartz and, to a lesser extent, platy ilmenite and goethite pseudomorphing...one specimen (B.M. 1944,107) the riebeckite and quartz grow out of a highly weathered granitic rock, largely...consisting of microcline microperthite, with some quartz and riebeckite. In 1946, a magnificent specimen...riebeckite prisms intergrown with and included in large quartz crystals, of total weight 97 lb (fig. 1), was presented...relates how he found the specimen in 1940 at a locality some 10 miles south of Sultan Hamud railway station |  | | Book | | difficulties in achieving uniformity in any compilation. Locality names and spellings differ in time or with boundaries...Therefore no attempt was made to revise and update all locality data to conform with present political designations...present country to which they belong. As a rule, the locality designations given in the original published papers...as varietal names (for example, the varieties of quartz known as agate, amethyst, carnelian, chalcedony...about the mineral, depending upon the kind of locality name used. The name franklinite, for Franklin |  | | Journal (article/letter/editorial) | | cordierite, biotite, quartz, andalusite, kyanite, Cr-rich staurolite, tourmaline, ilmenite, rutile and corundum...indicated by a retrograde talc-kyanite-quartz assemblage in late quartz-cordierite veins. Late M, conditions...are inferred from a kyanite-andalusite-chlorite-quartz assemblage in vein-cordierite. The M,-M, stages...orthoamphibole-zoning; P- T path. List ofabbrevi8tioss Qtz =Quartz Plag = Plagioclase Bi =Biotite And = Andalusite...Dum = Dumortierite Gran = Grandidierite Ilm = Ilmenite Rut = Rutile Zir =Zircon Ap =Apatite INTRODUCTION |  | | Journal (article/letter/editorial) | | 1987 F e - M n partitioning between garnet and ilmenite: experimental calibration and applications Mark...the partitioning of Fe and Mn between garnet and ilmenite has been calibrated by reversal experiments in...to natural assemblages reveals that the garnet-ilmenite geothermometer yields temperatures that agree...of, and relatively rapid F e - M n diffusion in ilmenite may lead to retrograde resetting of high temperature...- 1. The accuracy and applicability of garnet-ilmenite thermometry will improve with the availability |  | | Report (issue) | | mica ................ Garnet .................. Quartz .................. Accessory minerals ...........abundance are plagioclase, perth.it ic mlcrocline, quartz, and muscovite. All of thess mineral*, as well...eyton Bend l«»ortont outcrops **~^- Crtths X County lints, t«etpt along water court** Towns and eommualtios...oligoclase, and 20 percent ie schist dominated fy quartz. The schists transitional to the mica gneiss ...distorted foliation* \ Plate 2 A. Oligoclase-quartz-biotite gneiss (X 16, X nicols) shoving the typical |  | | Report (issue) | | Kakanui Hornblende, NZ Minnesota Hornblende, Fremont County, CO Sodic Fluor-richterite, Synthetic Apatite...*FSBO Benson Orthoclase *FSLC Plagioclase, Lake County, Oregon *FSNA Nunivak Anorthoclase, AK FSTA Tiburon...Corundum Gahnite, Brazil Hausmannite, Synthetic Ilmenite, IT men, USSR Manganosite, Synthetic Magnetite...Single Crystal Partridgeite, Synthetic Periclase Quartz, Brazil Rutile, Synthetic Rare Earth Oxide, Synthetic...Code: AMCM 18-APR-85 Standard: Cummi ngtonite Locality: Mikonui River, New Zealand Donor: Wm. Melson |  | | Journal (article/letter/editorial) | | such as plagioclase, and/or titanite coronas on ilmenite. Petrographic homogeneous compositions, identification...assemblages. The distribution of two-pyroxene ±ilmenite (titanite-absent) localities defines two principal...homblende-epidote-titanite locality orthopyroxene-cl inopyroxene ±ilmenite locality foy Bay fT.^r:. 20 ...which are emplaced in dominantly mafic tonalite-quartz diorite gneisses (StOnge et al., 1992). The tonalitic...characterized by muscovite-biotite-plagioclase-quartz ± titanite ± epidote ± garnet ± K-feldspar assemblages |  | | Report (issue) | | dike-like intrusion of non-foliated light colored sodic quartz diorite of Tertiary age that hosts the gabbro body...body on Fairweather A-2. The dike-like quartz diorite mass crops out for about seven miles on the Mt...Altaite, bornite, chalcopyrite, chromite, cubanite, ilmenite, mackinawite, magnetite, niccolite, pentlandite...and olivine (Fo71-86), also accessory chromite, ilmenite, magnetite, and graphite. Local phases are ultramafic...Other: Co, Fe, PGE, Ti Ore minerals: Chalcopyrite, ilmenite, magnetite, pentlandite?, pyrrhotite Gangue minerals: |  | | Journal (article/letter/editorial) | | Orthopyroxene-bearing peridotites are found at only one locality, as a lens within aluminous 'garbenschiefer' amphibolite...accentuated by differential weathering). Outcrops at Locality I (Fig. 1) contain coarsely bladed olivine crystals...color on fresh surfaces. The ultramafic body at Locality VI (Fig. 1) is enclosed entirely within the garbenschiefer...and talc-carbonate schists are absent from this locality, although a few carbonate veins cut the metaperidotite;...of the Isua uitramafic rocks Sample Type' 01 Locality I IW8O9-2A* IW8O9-2B IW809-2C IW809-2G IW8O9-2H |  | | Report (volume) | | ; Same witji biotite, scgit^gatioii mad. locality. pnkdi in pgmatiie: Ashamhoo South Travanciorc...—Interior Mayo mines. —Miner, Mayo mine. 22. : locality. tlio 20.— 21. Same gm-phito distribution...of the whole as a felsparquartz-amphibole rock. quartz green An which has been designated as andesite...extensively used far from tlie railway. if the locality were not so Coal. 33. At the request of the...Jaipur State V[r. Heron specially mentions a locality IJ miles west of EaLpur (lat. long. 76® O') where |
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