Apr 29
5.7" Pyritized Ammonite (Quenstedticeras) Fossil Composite Cluster
seen from United States
seen from United States
seen from India
seen from Austria
seen from Russia
seen from Malaysia
seen from Australia
seen from Italy
seen from Malaysia
seen from France
seen from France
seen from Canada
seen from China
seen from Iraq
seen from Malaysia
seen from United States
seen from United States
seen from France
seen from United States
seen from Malaysia
5.7" Pyritized Ammonite (Quenstedticeras) Fossil Composite Cluster
Pyritized Ammonite ; Original Character ☆ Gill Gill Global
💎 shiny rocks make brain go brrrr ✦ pyritized ammonite [x]
Pyritized Ammonite
In environments with low oxygen, but high iron, fossils can sometimes be replaced with pyrite. With this ammonite here, the mineral has replaced the original material to provide a beautiful golden sheen.
A negative of this - in places with high humidity, the pyrite will start to rot the fossil. This is known as Pyrite Disease. My first big find - a Triceratops vertebrae&ribs - had unfortunately suffered this.The fossils, from a distance, looked fine, but on closer inspection the ribs had splintered into fine mulch, and only one vert was actually salvageable.
Depending on the context, this pretty mineral can be a boon or a bane (and sometimes both).
yorkshire.fossils Today at Kettleness UK we found and opened this ammonite, covered in fools gold (pyrite), it glistened in the sun! 😍 We had the entire beach to ourselves, too! Just before this find however, we made an awesome Ichthyosaur discovery within a slab of Bituminous Slate. Updates on this find to come soon!
1.8" Pyritized Ammonite (Quenstedticeras) Fossil - Russia
Pyritized ammonite, easily one of my coolest specimens in my collection now!