In Evangelion, the LCL is an oxygenated liquid and the EVAs contain the souls of the pilots’ deceased mothers, making an EVA entry plug an alleghorical mother’s womb.
Word of God stated Rose Quartz had to shapeshift a womb to be pregnant with Steven. Being inorganic, Fetus-Steven must have had some sort of ersatz amniotic fluid.
What if the goop contained by the flask robonoids/Peridot’s escape pod was the same stuff that Steven was breathing “in utero”. When Garnet finds out Steven is in the escape pod, it shows Steven in FETAL position within the pod.
It’s established that Rose’s healing tears work on gems/gem-objects, and it has been established that Steven’s spit works on both gems and organics. What if Rose’s tears were a solution of this goop? What if by extension, Steven’s spit had tiny microscopic green triangles in his spit? He was, after all, supposed to mend that geode in the same way the robonoids fixed the warp pads.
What if Rose’s florakinetic abilities played a part in the defeat of the homeworld gems, and they have finally managed to synthetically reproduce Rose’s ability.
This brings me to another theory. Rose’s connection to plants. From the strawberry fields that now cover the site of the epic battle, Rose’s garden, the moss, Lion, and to Steven’s very existence - Rose Quartz was unique among gems in that she had the power to manipulate organic matter. I also believe it is this ability that made Rose the only Gem capable of creating Steven.
Now… we all know the show is no stranger to biomimicry designs. The “injectors” in the kindergarten are obviously based on bacteriophages. What would modern gem tech be based on?
I know that the piping in the spaceship is also meant to resemble veins… much like the Crystal temple has veins and a heart. But another thing that makes me think the homeworld gems might be using some sort of plant-inspired technology is the fact that Yellow Diamond (Who Jasper and Peridot work for, and who is probably waiting to hear back from them in her big gem-shaped spaceship that’s missing a left hand) is shown in front of a sun. Sun —> Photosynthesis —> Power Source of spaceship. Okay… I think everything past Goop being Amniotic Fluid is a bit of a stretch. But who knows!?
Goldstone is a type of glittering glass made in a low-oxygen reducing atmosphere. The finished product can take a smooth polish and be carved into beads, figurines, or other artifacts suitable for semiprecious stone, and in fact goldstone is often mistaken for or misrepresented as a natural material.
Another common name for the material is aventurine glass, based on the original Italian name avventurina (from avventura, “adventure” or “chance”). It is also sometimes called “stellaria” for its starry internal reflections, or "monk’s gold” or “monkstone” from folkloric associations with an unnamed monastic order.
The material is sometimes called sandstone when used in watch dials, despite its lack of resemblance to the porous, matte texture of the natural stone.
Curiously, “aventurine” glass is one of the few synthetic simulants to provide the eponym for the similar natural stones. The mineral name “aventurine” is used for forms of feldspar or quartz with mica inclusions that give a similar glittering appearance; the technical term for this optical phenomenon “aventurescence,“ is also derived from the same source.