• Hogtuvaite Mineral Data

    www.webmineral.com/data/Hogtuvaite.shtml Excalibur Mineral Corp. Google Search for Hogtuvaite Exceptional Minerals Google Search for Hogtuvaite John Betts Fine Minerals Search for Hogtuvaite McDougall Minerals Google Search for Hogtuvaite Mineral News Website Link Rock and Mineral Shows Google Search for Hogtuvaite Weinrich Minerals, Inc. Google Search for Hogtuvaite. Ask about ...
  • HOGTUVAITE, A NEW BERVLLIAN MEMBER OF THE AENIGMATITE ...

    rruff-2.geo.arizona.edu/uploads/CM32_439.pdf HOGTUVAITE, A NEW BERVLLIAN MEMBER OF THE AENIGMATITE GROUP FROM NORWAY, WITH NEW X.RAY DATA ON AENIGMATITE RICHARD I. GRAUCH IJ.S. Geol.ogicat Survey,973 Denver Federal Center, Denver, Colora.do 80225' U.S.A. INGVARLINDAHL Norges geolngiskz undersqkelse, Postbol
  • Hogtuvaite Mineral Specimen For Sale

    www.dakotamatrix.com/products/24024/hogtuvaite Hogtuvaite - Black vitrous crystal masses in matrix. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.
  • Hogtuvaite Mineral Specimens for Sale

    www.dakotamatrix.com/mineral-galleries/search A collection of Hogtuvaite mineral specimens from Hogtuva, Rana, Nordland, Norway
  • Hogtuvaite, a new beryllian member of the aenigmatite ...

    pubs.er.usgs.gov/publication/70017512 Hogtuvaite is a new beryllian member of the aenigmatite group that was discovered in Nordland County, Norway. It is a metamorphic mineral, hosted by Proterozoic granitic gneisses and mafic pegmatites of metamorphic origin. Compositional variations within and between gneiss-hosted samples of hogtuvaite are minimal; however, pegmatite-hosted samples of hogtuvaite are significantly different ...
  • H¿gtuvaite (Ca Na) (Fe2+ Fe3+ Ti) (Si Be Al) O 2 6 20

    www.handbookofmineralogy.com/pdfs/hogtuvaite.pdf H¿gtuvaite (Ca;Na)2(Fe2+;Fe3+;Ti)6(Si;Be;Al)6O20 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Triclinic, pseudomonoclinic. Point Group: 1: As prismatic crystals, to 4 cm, with well-developed striations k elongation; rarely in radiating groups.
  • Hogtuvaite Image - Mineral

    www.webmineral.com/specimens/picshow.php Dark platy crystals of hogtuvaite in matrix. Hogtuva, Mo i Rana, Nordland, Norway.
  • VECTOR REPRESENTATION F SOME MINERAL COMPOSITIONS IN THE ...

    citeseerx.ist.psu.edu/viewdoc/summary Hogtuvaite is derived by BeSiAl-2 acting on rhtlnite, and welshite by AlSbBe(MgTiSi)_1 acting on hpgtuvaite. Other theoretical end-members can be generated by the vector method; in the aenigmatite group, many are probably unstable with regmd to a mixture of clinopytoxene plus olivine or spinel, especially if they lack Ti or excess A1.
  • VECTOR REPRESENTATION OF SOME MINERAL COMPOSITIONS IN THE ...

    rruff-2.geo.arizona.edu/uploads/CM32_449.pdf VECTOR REPRESENTATION OF SOME MINERAL COMPOSITIONS IN THE AENIGMATITE GROUP, WITH SPECIAL REFERENCE TO HOGTUVAITE DONALD M. BURT Departtnent of Geology, Ari4orn State University, Tempe, Arizona 85287'1404, U.S.A. ABSTRACT Aenigmatite-group compositions conform to the general formulaA 2B6T6O2p, where t8lA cations are Na and Ca, t6J3 -" t"z*,
  • Rhönite: Mineral information, data and localities.

    www.mindat.org/min-3402.html Rhönite Group. A Ti3+-bearing member, one of three currently known phases with essential trivalent titanium by tistarite and grossmanite, is known from ...