Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.
"It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition (high silica content) induces a high viscosity and polymerization degree of the lava. The inhibition of atomic diffusion through this highly viscous and polymerized lava explains the lack of crystal growth. Obsidian is hard and brittle; it therefore fractures with very sharp edges, which had been used in the past in cutting and piercing tools, and are still used as surgical scalpel blades."
(Thank you Wikipedia)
These two stones always are in my pockets. Don't ask me why. When I stumbled across this stone, I was petrified by its intense blackness. It's darker than onyx (sometimes one can see through onyx). But, if you look two pictures down, you'll see that it can have an iridescent sheen. The stones I possess are quite dark, having only a dark green tinge to them when you look at them in full sun (due to iron and magnesium).
I wish the dark green/purplish tinge would come out better on
2 Comments on My precious...obsidian stones, last added: 2/8/2012
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By: Rodolphe,
on 2/4/2012
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By: Rodolphe,
on 2/3/2012
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By: Rodolphe,
on 1/29/2012
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My weekend, however boring, was dominated by one sight. This one:
I could thus sustain the buffets of a birthday party to which I shouldn't have gone, the long trip to and from there, the intense lack of sleep and the general solitude.
All in all, nothing a good, long walk along the strand couldn't fix. Tonight had not a remarkable sunset, but it had the no less remarkable quality of making me ponder. Thus could I rule out a plan of escape. I'm sticking to plan B then. I still have to make a couple of adjustments, but someone dear to me told me that someone dear to her told her that that was what life was all about. I'm not going to contradict this.
I wrote quite a lot this weekend, "a lot" is to be taken qualitatively. I also have come across another occurrence of a strange type of cross, which is popping out in odd places. I am digging yet further to the source. If need be, I'll post something about it, just in case someone somewhere knows something on the matter.
For now, I still have a good chunk of solitude to gnaw on.
2 Comments on Rainbow warrior, last added: 1/31/2012
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Elles sont magnifiques. C'est vrai que ce noir profond, cette matière lisse donnent envie de les caresser.
Tu as l'air d'avoir un beau bazar dans tes poches, ha ha !
Même pas de bazar dans mes poches o_O' J'ai fait le ménage de pré-printemps/post-hiver.