For those of you (like me) who may not be geologists, I found this an interesting read.
http://www.balmoralresources.com/projects/grasset/nickel-deposits-explained
As far as I can tell, this announcement seems to be following the classic structure as described in the link ...
.....
Deeper into the systems the sulphide drops begin to coalesce as they start to sink to from what is known as “Blebby” or “Globular” Ore. These “blebs” may reach several centimetres in size and range from aggregates of droplets to semi-massive sulphide “balls”. This type of texture is relatively rare, as the blebs are effectively caught in place as they falling through the magma.
As the sulphides continue to sink we see net-textured (or matrix) ores which are the most common ore type in most high-grade nickel deposits. Here sulphides range from 5 to as much as 50+% of the rock, forming a matrix between silicate minerals.....
Quite the read when SGQ announcements seem to be getting better and better.
GLTAH