Appears in the insight messengers store after the defeat of The One Reborn(as of patch 1.04).

So, I just beat and farmed The one reborn for a while, gathering insight to spend and whatnot, As well as souls... So I go to check out the insight store, restock my papers, ETC, And I saw the blood stone chunk available for purchase... For a WHOPPING 30 insight... Apiece

Is it possible for Chalice dungeons to have chunks in chest or possibly random bodies, even only in higher leveled Chalices?

I want to add what I found in the old hunter

So I started farming and did a few dozen farming runs and I think it's safe to say that not having chunks in your inventory helps the drop-rate.

"x1 Nightmare of Mensis, guarded by two dogs, just before second elevator." - it i s actually AFTER the second elevator. Unless you are counting the return elevator shortcut as the second, in which case you should probably say the "return elevator" or the "shortcut to Micolash"

I've tried farming the Zombie Beasts in the Unseen Village and the Blue eyed beasts in the upper cathedral ward whilst having the eye and kin covenant runes equipped but all they are dropping are twin blood shards (both), beast pellet (zombies) and bloodstone shards (blue eyes). I'm working my way through the chalices dungeons atm as I've put them off since growing bored with them back in May and would appreciate a glyph suggestion and it's requirements for a chalice that has a good stock/drop rate of these.

I dont seem to get the chunks by the insight bath with my one character. I can with another character. Help please?

Fastest way: from Hunters Dream, go to Yahar'gul, Unseen Village lamp. Go to elevator, leading you to lower location, but drop out in middle way. Get a rid of dogs, and backstab undead beast (1st possible loot), go back to small shrine with glowing bath, use it for shortcut. Go kill Chime Maiden (just because she is annoying), go back to glowing bath, and take another route. You will meet another undead beast, turned its back to you (2nd possible loot). Than go inside building against bridge with marskman, and go downstairs to find another conveniently placed undead beast (3rd possible loot). Go to Hipogean Gaol (those skull things should not be problem to you atm). Go to prison, lowest floor, and kill beast here (4th possible loot). After that, go to room midway on spiral stairs, and kill final, fifth beast. After this, you can simply sprint to Darkbeast Paarl lamp to repeat.