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Main page » Catalogue » Rare and unusual Specimens » sold specimens » Top Herderite Paragenesis



Top Herderite Paragenesis


Product No.: km10-012



 
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis
Top Herderite Paragenesis

 

 

Mineral:
(Hydroxyl-) Herderite / Topaz / Fluorapatite / Tourmaline , Variety: Elabite / Albite, Variety: Clevelandite / Manganotantalite , Variety: Alvarolite
Chemical Formula:
CaBe[(OH,F)|PO4] / Al2SiO4(F,OH)2 / Ca5(PO4)3F / Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / NaAlSi3O8 / MnTa2O6
Size:
36,2 x 24,4 x 20,8
crystal: 21,7 x 13,7 mm
Weight:
71 ct or 14,2 g
Transparence:
transparent - translucent
Quantity:
1
Origin:
Shengus (Shingus), Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan

Here you get the multiple twinned herderite crystal with fully intact crystal faces and fine luster. The matrix is composed out of snow white Cleavelandite and the fully intact Topaz crystals. Furthermore you find four apatite, one green tourmaline and several small blade shaped and lustrous manganotantalite crystals. There is another unknown prismatic pinkish crystal embedded but the surface is pretty etched. This is a very rarely found paragenesis with at least six different mineral species!!