guess the ink!

[PithyProlix]

Sailor 50 States California
Van Dieman's Hanging Lake / Blackened Seas
Sailor Ink Studio 641
Birmingham Boiler Steam

[PithyProlix]

Sheaffer Skrip Blue Black (There seems that maybe there are currently two different versions of this color. Regardless, Blue Black has sadly and surprisingly been excluded from the new line.)
Old version of Waterman Mysterious Blue / Blue Black / Bleu Nuit (which are all the same ink with different names, as far as I can tell)
Herbin Vert de Gris

[PithyProlix]

Pelikan Edelstein Aquamarine

[Yazeh]

Dominant Industry - Pearl - Glacier No.008?Standard - Lake No.115
Inkebara Cyan?
J Herbin 1670 Emerald of Chivor
FWP Bluegrass Velvet ?
Papier Plume Forest Green
Kobe #73 Hyogo-tsu History Blue/ #36 Sakae-Machi Indigo Blue

[Yazeh]

Robert Oster Cities of America Miami/ Australis Hydra/ Taiwan Blue /Frankly Blue?

Noodler's turquoise?

[Yazeh]

RO Fire & Ice/ Tranquility/Deep Sea/ Aqua?
Private Reserve Blue Suede?
Organics Studio Aldous Huxley Old World Blue?

[bunnspecial]

Fritz Schimpf Photographer's Blue(I won't try to remember the German name for it)

[DrPenfection]

Great guesses, but none is this ink.

The brand has been named.

[Yazeh]

Sailor Shikiori Shitoshito /764/Koke/ Yomagi/Yamadori?

[Yazeh]

Robert Oster Deep Sea - Crystal Marine?

[Yazeh]

Syo Ro? Ku-jaku?
Edelstein Apatite?

[DrPenfection]

No, no, no, no - getting colder - well one of them was getting a touch warmer

[Yazeh]

Organics Studio Alanine - ?

[Yazeh]

Ferris Wheel Press Edwards Gardens ?

[DrPenfection]

No, this ink is not an Organic Studios ink or a Ferris Wheel Press ink. In fact, it is not a North American brand or made in North America.

[bunnspecial]

It's not plain old 4001 Turquoise is it?

[DrPenfection]

It's not plain old 4001 Turquoise is it?

No, sorry.

[DrPenfection]

This ink is made by a major brand, if that helps.

[bunnspecial]

Lamy Blue black
Pilot Blue-black

[DrPenfection]

Lamy Blue black
Pilot Blue-black

No, neither of these.