A rugged Montana story in stone. This Elkhorn Mountains volcanic specimen shows two distinct textures—coarse-grained material that began cooling underground, and fine-grained volcanic rock formed when it reached the surface.


  
Finish: Cut and polished to reveal texture and color
  
Weight: 240 g (8.5 oz)
  
Display: Mineral stand included


Perfect for

Collectors, geology lovers, and anyone who wants a piece of Montana’s volcanic history on the shelf.

What you’ll receive

The exact specimen shown, plus the stand.

Shipping

Ships in 1–2 business days. Shipping rates are calculated by US zone at checkout.

Returns

Returns accepted within 20 days of delivery. Buyer pays return shipping. Please contact us before sending anything back.