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Post by evan cornish-keefe on Jul 18, 2015 14:28:21 GMT -6
So, are zinc-less micro crystals allowed on here? I've been taking some images through a microscope, which I find interesting. Often what looks like a "background" color you can see is a mass of crystals when it's magnified. Here's an example of a pendant: magnified 10x : magnified 30X : Here's an album of these images: s44.photobucket.com/user/evanthomas2/slideshow/microcrystalsThere's also some info about the glazes on my blog, may have put too many photo's on there because it is slow to load: willemite.tumblr.com/archive
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Post by jfox on Jul 18, 2015 21:45:49 GMT -6
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Kuba
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SztukKilka in Old Formu
Posts: 111
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Post by Kuba on Jul 19, 2015 1:35:48 GMT -6
Amazing stuff Evan, I need to buy some microscope. What are those little triangular crystals? Iron ones?
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Post by tileman2 on Jul 19, 2015 18:51:19 GMT -6
Evan
Love the extreme closeups: glad you shared them with us. Kuba went with iron (fe) triangular crystals in the field. I am going with sodium for this reason: sodium has a triclinic crystal lattice. "tri" as in three- as in tri-angle. Post more of your findings as you get them, U2 Kuba. Both ZNO and SiO2 can have up to 8% sodium, pending purity and mine location.
Tom
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Post by evan cornish-keefe on Jul 19, 2015 19:02:38 GMT -6
Thanks Jim, I thought some looked like birds, must've been pretty spaced out. Kuba, I'd look into one that can connect to a computer, these were taken with my iphone held to the eyepiece, 10 to 50x is probably a good magnification, i found 100x too much. There are a few different triangular crystals i've seen, all from variations of the zinc crystal base i use most, wish i knew what they were. These have 3% MoS2 and 6%TiO2, which gives large yellow Willemite crystals with these in the background, barely visible without the scope: These form as MnO2 is added, at around 15% there are just a few stunted Willemite crystals with clusters of these triangles which appear to branch hexagonally as they get larger: These are more like pyramids than triangles, here with about 10% Red Iron Oxide added, also few stunted Willemite crystals:
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Post by evan cornish-keefe on Jul 19, 2015 19:05:49 GMT -6
Tom, I don't know what effect the base glaze has exactly, the additions i just mentioned seem critical, sodium could be too.
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Kuba
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SztukKilka in Old Formu
Posts: 111
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Post by Kuba on Jul 20, 2015 1:15:33 GMT -6
I do not have microscope like I wrote before, but I have 100mm macro lens for my Canon 6D. I took two photos for a fast test. You can see it below. Need to train with camera settings and quality of the photos. I am not the best at taking macros P.S. I thought about Iron because I get this kind of crystals with RIO in the glaze. Hymm its going to be interesting (the quality is not the best but you can se strange looking "snowflakes")
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Post by tileman2 on Jul 20, 2015 14:27:25 GMT -6
Evan:
These close up / magnified pics fascinate the h*** out of me. The third pic should be named "Mars Rover," reminds me very much of the first images sent back. The second picture has my attention the most: in particular the silvery patches I am seeing> almost mirror like in reflection. Any chance you can zoom in on those?
Kuba: if you could, zoom in on the snow flakes, very curious about those as well. Feels like I am back in 10th grade science class, which is impossible because I slept through most of them from hangovers. Kuba: what do you make of the black specks in the white/silver crystals? Any idea what component of the glaze is causing those to appear?
Tom
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Post by evan cornish-keefe on Jul 20, 2015 22:04:19 GMT -6
Thanks Tom, did you look through the album in the link? There are other photos very similar to what I posted here, 159 in all. Hey Kuba, I've seen snowflakes too, but not blue ones. Any thoughts as to what they are? Or what is causing them to form? The largest i've seen was about 4mm. Here it looks to me like Willemite growing off of a snowflake:
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Kuba
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SztukKilka in Old Formu
Posts: 111
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Post by Kuba on Jul 21, 2015 7:41:03 GMT -6
Need to investigate those snowflakes. If only they could grow bigger like in Moly glazes Tom, have no idea what could cause them... probably Iron, but maybe experts can say something about it. I am just mixing ingredients This glaze has: Bentonite, RIO, Titanium, Manganese + Copper Oxide, so this is nothing really special. Upper snowflake is amazing! It looks like mini glacier. You should print those in good quality and sell as posters. Some new photos (still fighting with camera settings and sharpness, maybe we have some photographer here on form, who can give some tips how to take good macro photo with Canon 100 mm Macro lens):
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Post by evan cornish-keefe on Jul 21, 2015 18:05:54 GMT -6
Kuba, is there any manganese in your snowflake glaze? The ones I've seen have either had manganese in the glaze or granular manganese in the clay body. Fara Shimbo mentioned it might be Troostite, and if it is I'd assume part of the ZnO content could be replaced with MnO to get more to form? Haven't had much luck with Molybdenum, i recently got some crystals about a centimeter across. The zinc-less glaze i've seen the largest crystals in is in this photo. I'm fairly sure iron and titanium are necessary. I've seen these up to two inches diameter on a horizontal surface but only a small fraction of that when vertical. The glaze still needs a lot of work....
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Post by tileman2 on Jul 21, 2015 22:32:06 GMT -6
Evan:
Can you bring up photo 34 of 159: want to see a larger image....and # 18 please.
TY- Tom
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Kuba
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SztukKilka in Old Formu
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Post by Kuba on Jul 22, 2015 8:22:34 GMT -6
Evan, in there is no MnO in "snoflake glaze"... but there is Tin, Tiatnium and Dolomite + Cobalt of course
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Post by jfox on Jul 22, 2015 11:36:32 GMT -6
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joerg
New Member
website: www.crystalsforever.com
Posts: 49
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Post by joerg on Jul 22, 2015 17:16:08 GMT -6
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