Origin: Shares the border of Oregon and Idaho, USA

Description: This is a classic lapidary rock. "Plume" is French for feather, which is what you'll see in the pattern. This stone is beautiful as a cabochon on its own, but in artisanal jewelry it has also been used as the cap for doublets.

Chemical Composition: SiO₂
Grade: Lapidary Grade
Appearance: Translucent/ Opaque

Inclusions:
Cracks: Minimal
Mineral: The material can be pitted, and has the odd crack. Overall, it is easy to pull large cabochons from.

Rough
Cost per Gram: $0.15
Size approximately 1 pc: 8cm x 6.5cm x 5cm
Weight approximately 1 pc: 1.2kg

Slab
Cost per Gram: $0.17
Size approximately 1 pc: 13cm x 8.5cm x 0.5cm
Weight approximately 1 pc: 110g

Rough is rough. We do our best to grade and describe pieces in the lot, but ultimately, they all differ.