
Description
Bastnasite is weakly radioactive due to the presence of cerium.
It exhibits the piezoelectric effect, which means it can generate a voltage when pressure is applied.
It's difficult to cut because it's a relatively soft mineral.
• Weight : 4.60 carat
• Dimension : 10.1*7.2*5.2 mm
• Shape : Cushion
• Colour : Brown
• Creation : Natural
• Treatment : Not Enhanced
• Clarity : Loupe Clean
• Origin : Pakistan
• Lustre: Vitreous
• Certificate : On Customer Demand
• SKU : Uz ( G )
Reserve: $900.00
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Buyer's Premium
20%
Natural Honey Brown Bastnasite Gemstone: Loupe Clean Cushion Cut, 4.60 Carat
Estimate $1,100-$1,500
Starting Price
$440
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Loose Gemstones Auction
Jan 29, 2026 5:00 PM ESTNew York, NY, United States
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