Mineralienatlas - Fossilienatlas

Mineralien / Minerals / Minerales => Mineralien (Fundort) bestimmen / determine minerals => erledigte Bestimmungen / completed determinations => Thema gestartet von: YAMAnth am 25 Nov 06, 21:01

Titel: Please What's this? / SiC
Beitrag von: YAMAnth am 25 Nov 06, 21:01

Please What's this?
(http://www.picspirate.com/img/bbffbdf43371074dde97c7219667a26d/DSC00065a.jpg)

Titel: Re: Please What's this?
Beitrag von: thannator am 25 Nov 06, 21:08

Hi,

what locality is the specimen from? Did you test the hardness etc? Difficult to say from the pic.

Seb

Titel: Re: Please What's this?
Beitrag von: scheidewasser am 25 Nov 06, 21:58

Hi,

silicon carbid (SiC)

Best regards,
scheidewasser

Titel: Re: Please What's this?
Beitrag von: wolfilain am 25 Nov 06, 22:52

Hi

as scheidewasser said, it looks like silicon carbid. ( http://en.wikipedia.org/wiki/Silicon_carbide )

best regards
volker

Titel: Please What's this?
Beitrag von: YAMAnth am 26 Nov 06, 01:26

Am from czech republic and I found him in nature, is approximately 15 cm high. Already me at home costs several years and a little on him seated dust. Photo is acquisition mobile with speed lamp, stone is without preexposure darkly green when almost black with little ones shiny crystals, he looks like metal but is lightweight with porous surface. Give out of him break off tiny parts perhaps 1 millimeter big but are hard. A according to different pictures what am found, really he looks like silicon carbide.  Thanks for responses and excuse my English

Titel: Re: Please What's this?
Beitrag von: Hg am 26 Nov 06, 01:49

Hi,
I  also think it's SiC, wich is sythetic  ;)
there have been a lot of threads about that theme about SiC in the forum
greets
Andreas

Titel: Re: Please What's this?
Beitrag von: wolfi am 27 Nov 06, 10:03

Hi YAMAnth,

yes, it is SiC. No doubt!

Best regards
Wolfi

Titel: Re: Please What's this?
Beitrag von: MM-Bär am 27 Nov 06, 10:20

in other words (in summary): artifical garbage  8) - Sorry

Titel: Re: Please What's this?
Beitrag von: giantcrystal am 27 Nov 06, 11:23

SiC alias Carborundum !

You should however keep a little piece of it, as it is extremely hard - around 9,5 Mohs  and therefore the ideal tool to identify diamonds, if you ever happen to find some ;-)

Greetings

Thomas

Titel: Re: Please What's this?
Beitrag von: Krizu am 27 Nov 06, 13:07

Hello,

First of all: Check the hardness! If >9 then most likely SiC.

If you like the piece, keep it! Nice or ugly, treasure or garbage depends on yourself!

br

Frank