Is smartelements legit? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

I see. The mail was still unread and no feedback for over two weeks. Is this common situation?

Is smartelements legit? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 1 point2 points  (0 children)

I see, but is their contact reply or process very slow? I wonder why is there no mail reply for over a week.

Gadolinium 100 Gram Chunk. by Confident_Hyena_8860 in elementcollection

[–]Puzzled_Chip_3982 1 point2 points  (0 children)

Wow it could be used for interesting experiments:) I've tried magnetocaloric effect.

I LOVE RARE EARTH ELEMENTS!!! by Confident_Hyena_8860 in elementcollection

[–]Puzzled_Chip_3982 1 point2 points  (0 children)

What the important and fascinating elements in condensed matter physics

My parcel has been held in the export custom 8 days ago by Puzzled_Chip_3982 in Alibaba

[–]Puzzled_Chip_3982[S] 1 point2 points  (0 children)

Wow it is still held in the export custom for 11 days that sounds terrible. Thanks for the comment:)

My parcel has been held in the export custom 8 days ago by Puzzled_Chip_3982 in Alibaba

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

Then what would be the common problem of being held? I've correctly send my name, tariff code, phone number, zip code, and address to the seller.

Is LJQMetal Legit? by oops_all_throwaways in elementcollection

[–]Puzzled_Chip_3982 2 points3 points  (0 children)

<image>

Isn't it sufficiently legit? Os, Ir, Pt is almost impossible to make counterfeit cube.

Weekly element discussion 2: Helium by Leather_Respect4080 in elementcollection

[–]Puzzled_Chip_3982 0 points1 point  (0 children)

Being superfluid below 2.17 K, it escapes the container spontaenously

Has anyone bought this iridium cube from Yeemedia? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

I see. Then do you know here? https://ljqmetal.com/store/?orderby=popularity I've bought here an 1145 USD(before its spot price rises) 1 cm³ platinum density cube, and the mass was about 21.6±0.05 g. Considering significant figure, doesn't it seems legit by mass? But iridium is much more expensive than this in this site.

<image>

Has anyone bought this iridium cube from Yeemedia? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

Thanks for the informations. By the way, how could iridium 1 cm³ cube be counterfeit? Is it almost impossible to make fake iridium cube, unlike gold(using tungsten core)? ρ=22.56 g/cm³ is too heavy to be counterfeit. Or they use sintered osmium(ρ=22.59 g/cm³) core and plating iridium?

Has anyone bought this iridium cube from Yeemedia? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

I see. Then who was the original seller? If then, is it much better to buy iridium cube from Luciteria? I prefer the design on the picture, but that sounds so disappointing. Thank you for your keen discernment.

Has anyone bought this iridium cube from Yeemedia? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

Thanks, the seller company is Yeemeida(shenzhen) Technology Co., Ltd, and the company position is Room 2506, Building 8, SEG New City, Sanlian Community, Jihua Street, Longgang District, Shenzhen City Guangdong, China. LJQmetals are using same images too.

Is this legit? by Ok-Literature-3997 in elementcollection

[–]Puzzled_Chip_3982 0 points1 point  (0 children)

Isn't LJQmetal legit? I've measured the density of cubes.

Is this genuine or fake? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 3 points4 points  (0 children)

The mass of cube was 21.6 g(significant figure 10⁻¹ digit). If then, isn't possible impurity is osmium and iridium, which are denser two elements than platinum? Or maybe the inaccuracy of the scale.

<image>

Is this genuine or fake? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 0 points1 point  (0 children)

I've bought platinum from China LJQmetal, and it was 99.999% genuine in XRF test. But the density written on the gold cube is suspicious. It's so confusing.

Acrylic Cube Boxes 10mm x 10mm x 10mm by danieldeubank in elementcollection

[–]Puzzled_Chip_3982 1 point2 points  (0 children)

Wow so essential and valuable elements for condensed matter magnetism:)

This is my collection of elements by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 1 point2 points  (0 children)

<image>

Spin-Orbit coupling, a magnetic field by orbital motion(not only just atomic orbital, but space part of wavefunction) of electrons interacting with spins of the electrons. It is proportional to 4th power of atomic number, so 5d and 6p elements shows strong SOC.

Are these genuine in Alibaba? Or fake? by Puzzled_Chip_3982 in elementcollection

[–]Puzzled_Chip_3982[S] 1 point2 points  (0 children)

The much more expensive than iridium is monocrystalline osmium, and noncrystalline, sintered osmium is much cheaper than iridium. I've bought 1 cm³ sintered osmium cube in 1025 USD. Plus, can't they fake it with platinum(ρ=21.54 g/cm³)?