Polished fossil stromatolite . Carnegia wongawolensis CAR102. stromatolite 7 billion years

7 billion years

Dimensions approximately 145mm x 75mm x 8mm thick

Snakeskin Jasper slab

The clinozoisite has replaced but retained the shape of plagioclase feldspar crystals

Polished fossil stromatolite . Carnegia wongawolensis CAR102. stromatolite 7 billion yearsCAR102. Fossil stromatolite slab, polished on one side. Carnegia wongawolensis. These rare stromatolites are from the Windidda Formation, Earaheedy Group, Western Australia. They usually occur as weathered out nodules formed by branched, irregular columns. The environment they grew in was possibly freshwater algal marshes. Location is near the town of Wiluna, Western Australia. Age is Palaeoproterozoic (1. 6 to 2. 5 billion years). Approx. 210 mm x 70