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Main page » Catalogue » Crystals and Rough » Radioactive Minerals » sold specimens » TOP Rare big Fergusonite Crystal



TOP Rare big Fergusonite Crystal


Product No.: mj32-017



 
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal
TOP Rare big Fergusonite Crystal

 

 

Mineral:
Fergusonite-(Y)
Chemical Formula:
YNbO4 ((Y.45REE.37U.05).87(Nb.90Ta.08Ti.02) 1.00O3.64(OH).36)
Size:
41,4 x 12,3 x 10,4 mm
Weight:
73,67 ct or 14,734 g
Transparence:
opaque
Quantity:
1
Origin:
Sakangyi area, west of Mogok, Shan State, Burma (Myanmar)

A true rarity for all collectors of radioactive minerals, this is a fine tetragonal fergusonite crystal with attached twin crystals. One end shows a crystalline fracture while the other is flat terminated. The emitted radioactivity dosage for gamma particles is 2,8 µSv/h and include beta and alpha particles 8,2 µSv/h. Those prismatic tetragonal shaped crystals form at temperatures around 575 – 765°C otherwise they don’t disclose a crystal habit. This specimen is fairly big and terrific shaped for this mineral species. A rare specimen from the Sakangyi area.