[URL=https://www.icmag.com/ic/attachment.php?attachmentid=321952&thumb=1]View Image[/url] [URL=https://www.icmag.com/ic/attachment.php?attachmentid=349561&thumb=1]View Image[/url] The purple color is from the way it was grown. Its very easy to get a true strain of GSC to purple up. Cooling the room down in the 40s° while in dark cycle the last few weeks of flowering. If you go that low it will get very purple. I can make mine green with the little bit of purp. thats always in it, half and half or very purple all from air temp.. I can't see turning the AC on in dark to get that cool myself so living in Michigan my GSC is green in the Summer and purple in the winter. Those two pics are the exact same pheno (thin mint). I'll try to find a very purple pic..
As far as obtaining it you're best off finding a clone from a reputable source. BC bud depot has a seed version of GSC.
Ha thanks for this man i knew about the temperature effect to get the purple color, cause i had some GSC 'platinium pheno' that was looking like this... unfortunately because I'm based in Europe i can't get a clone from North america so i was wondering if the BUD depot GSC seeds were close to the original GSC ? any experience with this ? thanks for the answer already