Sala 2 · Vitrina 11Room 2 · Case 11

Vitrina 11Display case 11

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.

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Orthoclase with Carlsbad twin

ProveniențăLocality
Karlovy Vary, Czech Republic
DimensiuniSize
5 x 3.9 x 2.1 cm
FormulăFormula
K(AlSi3O8)
Nr. de inventarInventory no.
6010

Orthoclase is one of the most common minerals and is found worldwide. The original Carlsbad twins were described from Karlovy Vary (Carlsbad), Bohemia, Czech Republic.

The samples consist of doubly terminated Orthoclase crystals twinned as penetrating Carlsbad Twins. A twinned crystal in which the twinning axis is the c axis, the operation is a rotation of 180 degrees, and the contact surface is parallel to the side pinacoid. It is quite common in the alkali feldspars. An alternative spelling is Karlsbad twin.

Fișa din baza de dateDatabase record Sketchfab

Toate modelele din vitrinăAll models in this case 24

  1. Orthoclase with Carlsbad twin Nr.No. 6010 · Karlovy Vary, Czech Republic
  2. Sharp white crystals of Chabazite Nr.No. 6079 · Faroe Islands, Denmark
  3. Vitreous twinned Harmotome crystals on matrix Nr.No. 6077 · Sankt Andreasberg, Germany
  4. Unique aesthetic Heulandite snail-like shaped Nr.No. 6071 · Faroe Islands, part of the Kingdom of Denmark
  5. Cluster of red Heulandite crystals on matrix Nr.No. 6068 · Fassa Valley, Italy
  6. Lazurite (Lapis Lazuli) from Chile Nr.No. 6057 · Chile
  7. Pale-green Wernerite (a variety of Scapolite) Nr.No. 6055 · Laurinkari, Finland
  8. Leucite trapezohedrons in volcanic matrix Nr.No. 6053 · Mt. Somma, Italy
  9. Distorted trapezohedrons of Analcime (Analcite) Nr.No. 6050 · Tyrol, Austria
  10. Well-shaped trapezohedron of Analcime (Analcite) Nr.No. 6048 · Seiser Alm, Italy
  11. Rough bright-blue Sodalite Nr.No. 6047 · Ayopaya, Bolivia
  12. Massive bright-blue Sodalite Nr.No. 6046 · Ayopaya, Bolivia
  13. Foid-syenite with dark-blue Sodalite Nr.No. 6045 · Ditrău, Romania
  14. Porcelaneous Pericline crystals (var. Albite) Nr.No. 6036 · Tyrol, Austria
  15. Amazonite (var. Microcline, K-feldspar) Nr.No. 6030 · Pikes Peak, Colorado, USA
  16. Amazonite twins (variety of Microcline) Nr.No. 6028 · White Cap, Colorado, USA
  17. Tabular Sanidine crystal embedded in Trachyte Nr.No. 6034 · Siebengebirge, Cologne (Germany)
  18. Sanidine crystals embedded in Trachyte Nr.No. 6027 · Siebengebirge, Cologne (Germany)
  19. Orthoclase with Baveno and Manebach twins law Nr.No. 6023 · Baveno, Italy
  20. Orthoclase feldspar coated with Epidote crystals Nr.No. 6017 · The Fichtel Mountains, Germany
  21. Well shaped prismatic Orthoclase crystal Nr.No. 6014 · Elba Island, Italy
  22. A well-formed cluster of Orthoclase crystals Nr.No. 6008 · Karlovy Vary, Czech Republic
  23. Floater crystals of Adularia (var. K-Feldspar) Nr.No. 6006 · Central St Gotthard Massif, Switzerland
  24. Labradorite with schiller effect Nr.No. 6003 · St. Pauls, Labrador, Canada

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