Geo Advent Calendar Day 24

These lovely dendrites grew along a limestone bedding plane. The growth of dendrites is similar to snowflake formation; when a material is below its crystallisation temperature, fractal branches form instead of crystal faces. Dendrites are also a pseudofossil as they can be mistaken for fossil plants.24 Dendrites.jpg

Accession Number M0019
Status Accessioned
Specimen Type Mineral
Brief Description Manganese oxide
Full Description Manganese dendrites in Solnhofen limestone
Quantity 1
Age (Ma) 150.8-145.5
Location Solnhofen, Bavaria, Germany
Acquisition Method Purchased
Acquisition Details Festival of Geology, University College London – £18.00
Acquisition Date 2016-11-05
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