rock identification
rock identification
(OP)
Hi all!
I have a rock sample that needed be to identify.
The rock is large in size, approximately 200-400kg with pores and fossil which can be seen by naked eyes.
Attached along are an overview of the rock and the microscopic view of the rock and the fossil observed.
I need to know what type of rock is this and whether can it be found in France?
Thank you.
[img http://files.engineering.com/getfile.aspx?folder=e... http://files.engineering.com/getfile.aspx?folder=b... http://files.engineering.com/getfile.aspx?folder=4... http://files.engineering.com/getfile.aspx?folder=b...]
I have a rock sample that needed be to identify.
The rock is large in size, approximately 200-400kg with pores and fossil which can be seen by naked eyes.
Attached along are an overview of the rock and the microscopic view of the rock and the fossil observed.
I need to know what type of rock is this and whether can it be found in France?
Thank you.
[img http://files.engineering.com/getfile.aspx?folder=e... http://files.engineering.com/getfile.aspx?folder=b... http://files.engineering.com/getfile.aspx?folder=4... http://files.engineering.com/getfile.aspx?folder=b...]





RE: rock identification
Try dropping dilute Hydrochloric acid on it to see if it "fizzes" to confirm carbonate content. I'm sure it could be found in France.
RE: rock identification
RE: rock identification
It's hard to see if the crystals in the vugs are calcite or quartz. I mean I could tell with the naked eye.
So, with what I know, I'd just call it a limestone. If you knew the source of the rock, you could check geologic publications and learn the formation name. That may help too?
When in doubt, call it, "Leaverite." Leave 'er right there!
f-d
¡papá gordo ain’t no madre flaca!
RE: rock identification
RE: rock identification
http://www.geologyrocks.co.uk/
RE: rock identification
"We found this rock in so-and-so province in France. Can it be found elsewhere in France? " *<)
RE: rock identification
Thanks for your opinion.
I have tested it with diluted HCl and also done a SG test. Meanwhile, I have also sent a piece of the rock to a local geology lab for analyse. It is said that the rock sample is a compact limestone (fossiliferous) with various type of fossils seen include gastropods, bivalve and radiolaria/foraminifera. Consider as an organogenetic sedimentary rock.
Another geologist agrees that the rock is a type of fossiliferous limestone but the physical appearance is not a common in Malaysia but have seen a similar rock in UK that also extent to France and other Europe countries. May I know does anyone can recommend a geology laboratory in France?
RE: rock identification
RE: rock identification
RE: rock identification
You are funny, bridgebuster..
RE: rock identification
RE: rock identification
If this relates to a problem that has to do with engineering, with a bit more information, we can probably help you out. If you need geology information, this is not the best place to post your question.
RE: rock identification