Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

Pseudo-stromatolite, extra largeLocale: Morocco Approx dimensions: 5. 5 x 5 x 4" Approx weight: 6 lbs 11 oz A stromatolite is a sedimentary fossil structure made by prehistoric bacteria colonies, typically cyanobacteria. Stromatolites in fact are still living and forming in some parts of our world today, including Australia, and are among the earliest forms of lifeand fossilson our Earth. The fossils form in shallow water conditions of lakes or salt water shores. First,

The crystal intersecting with the base of the point is also double-terminated

235g H 2

Spherical black inclusions are visible inside

These sandstone coasters are made of Arizona Sierra sandstone sourced from central Arizona

Approx dimensions and weight: Option A 2

Size categories

) shaped iron concretions

and an off-cream colored one

The 'craters' pockmarking the surface create an unusual moonscape appearance—or maybe more Mars-scape with the flat red color of the piece

and the other side has excellent spherical formations

These specimens from the Tatatila region of Mexico are commonly accompanied smoky quartz

Approx weight: 90–110g due to natural variations of material density