PAK-Chart, page-121

Hi Contra
i value your Q. there are thousands of different G deposits around the world and
yet there are only 2 types ,
1. Disseminated G , meaning flakes in orebody at about 10% per ton , or also known from the Biogenic zone.
A process i call from the top down , first it was organic material , concentrated , heated , pressed , coal created , further heated and pressed till only G was left . Max inert heating temps 1300c. from Tanzania.

2. Vein G. only found in SL. , Precambrian G. from the bottom up created , it was under the earth crust liquified at super high temps, 3500c. with a boiling point of 4500c+ , a violent event forced this liquid carbon into the opening rock crevasses ,
and created uniqueness beyond believe , our veins today .
I have been to SL a few times , and the G consistency over the south east corner is very good . ( only been in the SE corner , but thats the general concentration for the best G. )