|
|
|
|
| Rock Star: Thanks ConQEST |
|
|
Thanks to everyone who visited the trade display at ConQEST in July. Could the registrant who won the Rockhoundz door prize, please drop me a line as I have a stand for your Knightia fossil I forgot to give you.
The good news is, if you didn't win this lovely specimen, we have two more in the shop for sale. This Knightia fossil fish is from Fossil Lake in the Green River Formation in Wyoming, USA. It's a lovely display specimen for the classroom or for teaching. The specimen can be handled by students without damaging the fossil if it is handled with care. The specimen is a 4.5cm fossil on a 7.5cm x 5cm substrate. Price includes display stand.
Knightia is a bony fish from family Clupeidae 35 - 55 million years old. A small schooling fish from the Eocene that was a food source for many other fish. Knightia was a freshwater species that fed on small organisms like algae and diatoms. The species is now extinct but resembled the modern herring. The substrate is a very fine, soft, calcite bearing shale.
Hope you've had a great Science Week, keep up the good work!
|
|
|
|
|
|
|
|
|
|
Rhodonite is a manganese inosilicate mineral formed by either hydrathermal, contact metamorhpic or regional metamorphic processes. This specimen comes from around Kenilwoth in Qld. It is most likely that the surrounding matrix is a marine sediment metamorphosed by intrusion of the North Arm Volcanics and/or subsequent regional deformation. The specimen is pink in colour and has been cut on one face.
If you'd like to find out more about the metamorphic processes in this area, I'd recommend doing one of Warwick Wilmott's tours from the Rocks and Landscapes of Sunshine Coast book starting on p29. The area around Kenilworth is well worth a family visit apart from the geology, offering great camping, horse riding and mountain biking opportunities. Check out the Kenilworth Showgrounds Caravan Park for a dog friendly stay or the Charlie Moreland campground in the state forest.
See you round the ridges *|FNAME|*,
Angus
 |
|
|
|
|
|
|
|
|
