Thursday, June 26, 2014

Fossils at San Gimignano Italy


My visit to Italy was mostly a vacation just to relax so I did not do much research to find museums or fossil/mineral sites to visit. I read that it is illegal to collect fossils in Italy and their museums have some odd schedules about being open. That said, I did keep my eyes open to geological features at places we stopped to visit. One town we spent a few hours at was San Gimignano, Italy.

One of the walls had a stone block that had some fossils in it. The fossil I could see was a small gastropod calcite fossil about 2 cm in diameter. The rest of the brown block had broken shell fragment fossils.


A nearby stone in the same wall had an interesting pattern on it. Could it be volcanic in origin?


Near the wall were olive trees, here is picture of some baby olives.


Here is a panoramic view from San Gimignano of the surrounding countryside:



I found a small shop that sold jeweler and some mineral and fossil specimens. It is called Mirone Alabastri (53037 San Gimignano, Firenze). The fossils they sold were ammonites found in Madagascar. I did find some mineral specimens from Italy there that seemed unique.

Here is a dark quartz crystal in matrix from the quarries at Monterigginoi near Siena. Learn more about the locality here: http://www.mindat.org/loc-125546.html


This green mineral might be malachite. The specimen was found at Serrabottini Massa Marittima in Grosseto Province of Tuscany Italy. Learn more about this locality here: http://www.mindat.org/loc-64651.html



These next set of images are of the specimen magnified under the microscope x23. Learn more about this locality's malachite here: http://www.mindat.org/gallery.php?cform_is_valid=1&loc=64651&min=2550&cf_pager_page=2




The last mineral picture is a piece of galena from unknown locality.

Wednesday, June 25, 2014

Ammonite in Venice Italy


Here is a picture of an unidentified ammonite fossil. It was found embedded in a step at the Piazza San Marco in Venice, Italy. My guess is this might be limestone from the region around Verona Italy. That area is known for its ammonite fossils found in building materials. According to this flickr web page, there are paving stones quarried in the Alps known as "Ammonitic Red" or "Nodular Limestone of Verona" from the Jurassic Period (see https://www.flickr.com/photos/greenriver/357717233/). The ammonite fossil I came across was documented in 2012 in this blog along with some more ammonite fossils found Venice: http://ytaba36.wordpress.com/2012/03/08/ammonites/


The step is in front of a coin and stamp shop called Degani S.A.S. di Montanari G. & C. (S. Marco 79, 30124 Venezia).

In a related note, they had some dinosaur and reptile stamps for sale in the display window.  More about these in a future blog post.

Here is a picture of San Marco Square in Venice Italy.



Learn more about ammonite fossils in Italy:

Fossil Museum in Bolca: http://www.tourism.verona.it/en/enjoy-verona/art-and-culture/monuments-and-sights/fossils-museum-in-bolca

Fossil Museum in Bolca: http://www.veronissima.com/sito_inglese/html/tour-museums-natural-history.html

Quarry in Verona: http://ramkitten.squidoo.com/ammonitic-limestone-verona-italy

Monday, May 19, 2014

Unidentified Crinoid Holdfast

It is difficult to sometimes identify Devonian Period crinoid stems without their calyx. This specimen was found in Clark County, Indiana, USA. The fossil fragment has a lot of texture.