FAQ
It is currently Mon May 29, 2017 7:42 am


Author Message
Ridgerd22511
Post  Post subject: Shocked quartz taking the form of bones and teeth?  |  Posted: Mon May 18, 2015 11:23 pm

Joined: Sun Sep 28, 2014 4:42 pm
Posts: 11

Offline
Please help! Can shocked quarts take the form of teeth or bone? Or any other creature that was once living? Could this also give the items magnetic properties? Any help will be appreciated. Thank you.


Top
marnixR
Post  Post subject: Re: Shocked quartz taking the form of bones and teeth?  |  Posted: Tue May 19, 2015 6:35 am
User avatar

Joined: Thu Aug 04, 2011 8:35 pm
Posts: 4780
Location: Cardiff, Wales

Offline
in order to find shocked quartz in what has been tooth or bone would first of all requires the tooth or bone to be replaced by quartz during the fossilisation process, which isn't unheard of, although the quartz is then of the crypto-crystalline variety like agate or opal

shocked quartz is usually associated with meteor or comet impact events (provided we're talking about natural events, because nuclear explosions can cause the same effect), and tbh the ferocity of this type of impact is what produces shocked quartz in silica in the ground, but would also totally obliterate any fossils that are close enough to produce shocked quartz

conclusion : shocked quartz in fossilised bone or teeth is highly unlikely

as for magnetic properties of quartz : as far as i'm aware the only ferromagnetic materials are iron, cobalt, nickel and some of their compounds + some other materials such as CrO2 - quartz is not amongst those

silicon as an element is diamagnetic, which means that it has no nett magnetism, but when placed in a magnetic field an induced magnetic field in a direction opposite to the externally applied magnetic field is created - silica is also weakly diamagnetic, meaning it can forced out of a magnetic field, but the force exerted is pretty small
things may be different if the silica contained substantial impurities of iron, although i doubt that the effect is substantial

_________________
"Reality is that which, when you stop believing in it, doesn't go away." (Philip K. Dick)
"Someone is WRONG on the internet" (xkcd)


Top
kojax
Post  Post subject: Re: Shocked quartz taking the form of bones and teeth?  |  Posted: Thu May 21, 2015 1:27 pm
Original Member
Original Member

Joined: Mon Aug 15, 2011 11:43 am
Posts: 582

Offline
marnixR wrote:

shocked quartz is usually associated with meteor or comet impact events (provided we're talking about natural events, because nuclear explosions can cause the same effect), and tbh the ferocity of this type of impact is what produces shocked quartz in silica in the ground, but would also totally obliterate any fossils that are close enough to produce shocked quartz



Suppose there is an asteroid event that creates shocked quartz, and then afterward an animal comes along and dies?

Could that lead to the desired outcome?


Top
marnixR
Post  Post subject: Re: Shocked quartz taking the form of bones and teeth?  |  Posted: Thu May 21, 2015 4:00 pm
User avatar

Joined: Thu Aug 04, 2011 8:35 pm
Posts: 4780
Location: Cardiff, Wales

Offline
it's the impact that causes the shocked quartz (for reference, this is what Wikipedia has to say on the topic : "Shocked quartz is associated with two high pressure polymorphs of silicon dioxide: coesite and stishovite. These polymorphs have a crystal structure different from standard quartz.")

i'm not sure how an animal coming along could incorporate shocked quartz in its bones or teeth - if during fossilisation the bone or tooth gets replaced by silica, that would happen through a percolation process where the original bony structure gradually gets replaced by silica, but in this process any trace of the original quartz structure would be totally gone, independent of whether the quartz was shocked or not.

_________________
"Reality is that which, when you stop believing in it, doesn't go away." (Philip K. Dick)
"Someone is WRONG on the internet" (xkcd)


Top
Ridgerd22511
Post  Post subject: Re: Shocked quartz taking the form of bones and teeth?  |  Posted: Fri May 22, 2015 8:44 pm

Joined: Sun Sep 28, 2014 4:42 pm
Posts: 11

Offline
Thank you very much for all the helpful information. I am going to post the images I have inquired about. Again thank you.


Top
marnixR
Post  Post subject: Re: Shocked quartz taking the form of bones and teeth?  |  Posted: Sun May 24, 2015 8:46 am
User avatar

Joined: Thu Aug 04, 2011 8:35 pm
Posts: 4780
Location: Cardiff, Wales

Offline
the best way to post pictures on this forum is to upload to some other site, take the URL and place it inside a pair of img tags

_________________
"Reality is that which, when you stop believing in it, doesn't go away." (Philip K. Dick)
"Someone is WRONG on the internet" (xkcd)


Top
Display posts from previous:  Sort by  
Print view

Who is online
Users browsing this forum: No registered users and 1 guest
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
Jump to:   


Delete all board cookies | The team | All times are UTC


This free forum is proudly hosted by ProphpBB | phpBB software | Report Abuse | Privacy