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ZEOPHYLLITE - Velké Březno,Czech Republic | TL- type locality | SYSTEMATIC | 45 x 37 x 31 mm

Zeophyllite, Czech Republic, Miniature (3-6 cm)
US$35.00
a7942#m
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Mineral: ZEOPHYLLITE
Locality: Kočičí Vrch,Katzenberg,Velké Březno,Ústí nad Labem Region, Czech Republic
Dimension (mm): 45 x 37 x 31 mm
Weight (gr): 65 gram

Description / Notes: ZEOPHYLLITE usually forms flaky crystals, often arranged in radially radial aggregates. It forms hydrothermally in the cavities of volcanic rocks. It is often associated with zeolites. This is a sample from the type locality.


  • Formula:Ca13Si10O28(OH)2F8 · 6H2O
  • Colour:White
  • Lustre:Pearly
  • Hardness:3
  • Specific Gravity:2.747 - 2.764
  • Crystal System:Trigonal
  • Name:Named after the Greek "ζέω" (zeo), 'to boil', and "φύλλον" (phyllos), 'leaf', alluding to its occurrence in hemispheral foliated forms and intumescence (swelling) on heating.
  • Type Locality: Velké Březno, Ústí nad Labem District, Ústí nad Labem Region, Czech Republic
  • IMA Status: Approved, 'Grandfathered' (first described prior to 1959)


Further information in mineralogy databases:

Classification:
  • 9.Silicates
Mineral name:
  • Zeophyllite
Country origine:
Czech Republic
Specimen size:
Miniature (3-6 cm)

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