About Rock Monster - Boulderax (Trans-Green)

Rock Monster - Boulderax (Trans-Green) is a LEGO Power Miners minifigure, first cataloged in 2009. BrickPicker currently values it around $18.97 (typically $5.47 to $19.63). It appears in LEGO set 8957 Mine Mech. BrickPicker tracks its value, price history, and eBay and BrickLink availability.

Frequently asked questions

Answered live from BrickPicker’s value tracking and catalog data — these update as the data does.

How much is the Rock Monster - Boulderax (Trans-Green) minifigure worth?

BrickPicker currently values the Rock Monster - Boulderax (Trans-Green) minifigure around $18.97. Recent examples have traded between $5.47 and $19.63. The BrickPicker value is down about 12% since we began tracking it. The full price history is on this page.

Is the Rock Monster - Boulderax (Trans-Green) minifigure rare?

Rock Monster - Boulderax (Trans-Green) has limited availability. It appears in only 1 LEGO set, which keeps supply relatively tight compared with figures shared across many sets.

What set does the Rock Monster - Boulderax (Trans-Green) minifigure come in?

Rock Monster - Boulderax (Trans-Green) comes in LEGO set 8957 Mine Mech (2008). The sets it appears in are listed on this page.