Does getting very large crystals during meth crystallisation show signs of a less pure product?

[V€ctor Company]

I have been following the following guide: http://bbzzzsvqcrqtki6umym6itiixfhn...ne-crystallization-and-ice-manufacturing.465/

and have read the following: Paradoxically, dirty meth crystallizes better than pure meth because the crystals quickly grow around a particle of impurity, forming nice large, hard crystals.

I have attached 3 images. Two of them are images we have taken ourselves of our experimental batches which show smaller clearer shards we have crystallised using the method on the link above and another photo is a picture I have taken off the internet (the black glove) as an example of very big shards, the same size as a hand.

Based off those crystallisation instructions, if you receive shards that are as big as the shards in the image with the black glove does that mean your product is impure? Is it easy to tell that our batches are of higher purity than that from our pictures?

 

[fidelis]

im not the most experienced with ice but the black glove one doesnt even look like meth to me (ik its just shit ice but it reminds me of like a big hunk of quartz or something). some of ur shards are bigger than others ive seen, but nothing to be ALARMED about. the ones in the first pic look great! it looks clean to me but i would get a 2nd opinion.

i would def trust these more than really small shards ^^;
have u considered selling on the forum?

 

[whatshappening]

it means they had a lot of free space to grow. big crystallization dish.

 

[Osmosis Vanderwaal]

Here's the thing if you had made the meth that would not be true but if you bought it somewhere... yeah that's not methamphetamine...err I mean the black glove pic, that's not meth