Biggs Jasper Slab Value Guide

Biggs Jasper is a highly sought-after picture jasper discovered in the 1960s during roadwork at Biggs Junction, Oregon. It is prized by collectors for its unique ability to depict intricate desert landscapes and rolling hills through natural volcanic ash sedimentation.

What Is Biggs Jasper Slab Worth?

The typical price range for Biggs Jasper Slab is $175 - $190 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The clarity and complexity of the 'landscape' scene within the slab significantly impact the $175-$190 price range.
• Specimen size and the quality of the professional polish applied to the surface.
• Rarity of the specific banding patterns, as the original 1960s discovery site is no longer accessible for mining.
• Physical integrity, including the absence of natural fractures or pits in the jasper and quartz matrix.

How to Identify Biggs Jasper Slab?

• Look for distinctive multi-toned brown and tan banding that mimics topographical scenery.
• Verify the presence of orbicular patterns and fine-grained chalcedony typical of the Biggs Junction deposit.
• Check for a high-gloss lapidary polish that highlights the complex, layered 'picture' formations.
• Confirm the material hardness and density consistent with a quartz-based jasper variety.

History of Biggs Jasper Slab

Biggs Jasper was first discovered in the 1960s during the construction of an interchange on Interstate 80 in Biggs Junction, Oregon. This rare form of jasper was formed when volcanic ash deposited into ancient lake beds was subjected to heat and pressure. It is highly prized by lapidary enthusiasts for its ability to mimic desert landscapes or rolling hills in its natural patterns.