Sala 2 · Vitrina 5Room 2 · Case 5

Vitrina 5Display case 5

24 eșantioane din această vitrină, digitizate în 3D. Rotește, apropie și citește despre fiecare.24 specimens from this case, digitised in 3D. Rotate, zoom in and read about each one.

Toate eșantioanele din vitrina 5All specimens in case 5

1 / 24

Perovskite crystal (var. Dysanalyte) (macro)

ProveniențăLocality
Magnet Cove, Arkansas, USA
DimensiuniSize
1.2 x 0.5 x 0.3 cm
FormulăFormula
Perovskite - CaTiO3; Anatase - TiO2
Nr. de inventarInventory no.
4020

Perovskite is an increasingly economically important, and in some rocks a rather common, mineral. It is sought after for its rare earth metal content. Often Perovskite is enriched in cerium, niobium, thorium, lanthanum, neodymium, and other rare earth metals. When the habit is cubic, specimens can remind one of the darkly colored cubes of Galena. But Galena's better metallic luster, greater density, and perfect cleavage prevent anyone from permanently confusing the two.

This specimen represents a floater cube-octahedron crystal of Perovskite (pseudocubic; it is orthorhombic in symmetry) with brownish alteration of Anatase. Dysanalyte is a Nb-bearing Perovskite.

Toate modelele din vitrinăAll models in this case 24

  1. Perovskite crystal (var. Dysanalyte) (macro) Nr.No. 4020 · Magnet Cove, Arkansas, USA
  2. Andradite garnet crystal (macro-photogrammetry) Nr.No. 4017 · Kola Peninsula, Russia
  3. 'Perfect' bipyramidal smoky Quartz (macro) Nr.No. 4021 · Czech Republic
  4. Jacinto de Compostela Quartz (macro) Nr.No. 4015 · Spain
  5. Shiny-metallic Galena (macro-photogrammetry) Nr.No. 4008 · Germany
  6. Malachite pseudomorph after Cuprite (macro) Nr.No. 4007 · Chessy, France
  7. Thénardite butterfly (twinned crystals) Nr.No. 4006 · USA
  8. Twinned Staurolite (macro-photogrammetry) Nr.No. 4000 · USA
  9. Floater crystal of Zircon (macro-photogrammetry) Nr.No. 3997 · Norway
  10. Spear-shaped crystals of Marcasite (macro) Nr.No. 3995 · Germany
  11. Outstanding knee-twinned Rutile Nr.No. 3990 · USA
  12. Cassiterite crystal (macro-photogrammetry) Nr.No. 3978 · Cornwall, UK
  13. Axinite-(Fe) coated with Chlorite (macro) Nr.No. 3975 · Medel Valley, Grischun, Switzerland
  14. Floater crystal of Augite (macro-photogrammetry) Nr.No. 3987 · Canada
  15. Floater crystal of Hornblende Nr.No. 3988 · Czech Republic
  16. Untwinned Aragonite crystal (macro) Nr.No. 3983 · Spain
  17. Aragonite trilling (close-up photogrammetry) Nr.No. 3969 · Spain
  18. Incomplete octahedron of Magnetite (macro) Nr.No. 3956 · USA
  19. Pale green Beryl crystal (macro-photogrammetry) Nr.No. 3951 · Italy
  20. Orthoclase crystal (macro-photogrammetry) Nr.No. 4009 · Czech Republic
  21. Single Orthoclase Crystal (macro-photogrammetry) Nr.No. 4003 · Russia
  22. Prismatic Orthoclase crystal (macro) Nr.No. 3996 · Poland
  23. Pink prismatic Orthoclase crystal (macro) Nr.No. 3962 · Italy
  24. Doubly-terminated Quartz crystal (close-up) Nr.No. 3971 · Switzerland

Alte vitrine în 3DMore display cases in 3D