All Stories

  1. Spectroscopic and ab initio studies of the pressure-induced Fe2+ high-spin-to-low-spin electronic transition in natural triphylite–lithiophilite
  2. Evidence for a pressure-induced spin transition in olivine-type LiFePO4 triphylite
  3. Optical Spectroscopic and Colorimetric Study of Pyroxenes From Fenitized Rocks of the Chernihivka Carbonatite Massif of the Azov Region
  4. synthetic Fe3+-bearing beryl
  5. Optical absorption, Mössbauer, and FTIR spectroscopic studies of two blue bazzites
  6. High-Pressure Transition of Fe2+ From Low- to High-Spin Electronic State in Siderite: Optical Absorption Study
  7. Usambara effect in tourmaline: optical spectroscopy and colourimetric studies
  8. Crystal Chemistry, Optical Spectra and Color of Beryl. I. Heliodor and Golden Beryl — Two Varieties of Natural Yellow Beryl
  9. Spectroscopy of red dravite from northern Tanzania
  10. Tourmaline with the Usambara Effect (Optical Spectroscopic Study)
  11. Synthetic and natural chromium-bearing spinels: an optical spectroscopy study
  12. Hydrogen incorporation and the oxidation state of iron in ringwoodite: A spectroscopic study
  13. Fe2+, Mg-distribution among non-equivalent structural sites M1 and M2 in natural olivines: an optical spectroscopy study
  14. Coupled H and Nb, Cr, and V trace element behavior in synthetic rutile at 600  C, 400 MPa and possible geological application
  15. FTIR spectroscopic study of natural andalusite showing electronic Fe–Ti charge-transfer processes: zoning and thermal evolution of OH-vibration bands
  16. Optical absorption spectroscopy study of three synthetic V3+-bearing clinopyroxenes
  17. Pressure-induced hydrogen bond symmetrisation in guyanaite, β-CrOOH: evidence from spectroscopy and ab initio simulations
  18. Structural relaxation and crystal field stabilization in Cr3+-containing oxides and silicates
  19. New accurate compression data for γ-Fe2SiO4
  20. High-pressure electronic absorption spectroscopy of natural and synthetic Cr3+-bearing clinopyroxenes
  21. Optical absorption of electronic Fe–Ti charge-transfer transition in natural andalusite: the thermal stability of the charge-transfer band
  22. Titanium-bearing pyroxenes of some E asteroids: Coexisting of igneous and hydrated rocks
  23. Optical spectroscopic study of natural Fe-rich Pizzo Forno staurolite at different temperatures and pressures
  24. Optical spectroscopic study of tetrahedrally coordinated Co2+ in natural spinel and staurolite at different temperatures and pressures
  25. Spectroscopic studies of synthetic and natural ringwoodite, γ-(Mg, Fe)2SiO4
  26. Pressure dependence of color of natural uvarovite: the barochromic effect
  27. Optical spectroscopic study of synthetic NaScSi2O6–CaNiSi2O6 pyroxenes at normal and high pressures
  28. High-pressure optical spectroscopy and X-ray diffraction studies on synthetic cobalt aluminum silicate garnet
  29. Electronic absorption spectra of phosphate minerals with olivine-type Structures: II. The oxidized minerals ferrisicklerite, M1[6](□1−xLix)M2[6](Fe3+1−xMn2+
  30. Optical absorption study of natural garnets of almandine-skiagite composition showing intervalence Fe2+ + Fe3+ -> Fe3+ + Fe2+ charge-transfer transition
  31. Octahedral cation ordering in Mg, Fe2+-olivine: an optical absorption spectroscopic study
  32. Electronic absorption spectra of phosphate minerals with olivine-type structures: I. Members of the triphylite-lithiophilite series, M1[6]LiM2[6](Fex2+Mn1-x2+)[PO4]
  33. Infrared spectroscopy study of nitrogen centers in microdiamonds from Ukrainian Neogene placers
  34. Luminescence spectroscopic study of Cr3+ in Brazilian topazes from Ouro Preto
  35. Absorption properties of synthetic Cr-doped spinels in the UV, visible and infrared range and their astronomical implications
  36. Electronic absorption spectroscopy of natural (Fe2+, Fe3+)-bearing spinels of spinel s.s.-hercynite and gahnite-hercynite solid solutions at different temperatures and high-pressures
  37. On unusual deep-violet microcrystals of diamonds from placers of Ukraine
  38. Characterizing 21 Lutetia with its Reflectance Spectra
  39. Optical spectroscopy study of variously colored gem-quality topazes from Ouro Preto, Minas Gerais, Brazil
  40. Spectroscopic study of natural gem quality "Imperial"-Topazes from Ouro Preto, Brazil
  41. Single-crystal high-pressure electronic absorption spectroscopic study of natural orthopyroxenes
  42. High-temperature, high-pressure optical spectroscopic study of ferric-iron-bearing tourmaline
  43. Single-crystal electronic absorption spectroscopy of synthetic chromium-, cobalt-, and vanadium-bearing pyropes at different temperatures and pressures
  44. Optical spectroscopic study of tuhualite and a re-examination of the beryl, cordierite, and osumilite spectra
  45. Spectroscopic standards for four- and fivefold-coordinated Fe2+in oxygen-based minerals
  46. Optical spectra of Co2+in three synthetic silicate minerals
  47. Electronic absorption spectra of Fe 2+ ions in oxygen-based rock-forming minerals at temperatures between 297 and 600 K
  48. Fe2+ -Ti4+ charge-transfer in dumortierite
  49. Electronic absorption spectra of Fe3+ in andradite and epidote at different temperatures and pressures
  50. Optical spectroscopy study of natural Fe, Ti-bearing calcic amphiboles
  51. Compression moduli of Cr 3+ -centered octahedra in a variety of oxygen-based rock-forming minerals
  52. Pressure- and temperature-effects on exchange-coupled-pair bands in electronic spectra of some oxygen-based iron-bearing minerals
  53. Temperature dependent polarized single crystal absorption spectra of kaemmererite
  54. Optical absorption investigation of Cr3+ ion-bearing minerals in the temperature range 77?797 K
  55. Optical absorption spectroscopy of synthetic tourmalines
  56. Optical and m�ssbauer study of minerals of the eudialyte group
  57. Polarized optical absorption spectra of synthetic chromium doped Mg2SiO4 (forsterite)
  58. Fe2+-Ti4+ charge-transfer in garnets from mantle eclogites
  59. Optical spectra of Cu2+ ions in synthetic beryl
  60. Optical absorption spectra of iron ions in vivianite