One of two minerals the word "jade" covers — the other is nephrite. Jadeite is rarer, harder, more vivid, and culturally the more valuable. "Imperial jade" — the saturated emerald-green Burmese variety — is the most expensive jade in the world, and the Chinese jadeite market sets prices that look more like fine-art auctions than gemstone trade. Type A jadeite is unenhanced; B and C are bleached / dyed and disclosed.
NaAlSi₂O₆ pyroxene-group, monoclinic crystal system, occurs as interlocking microcrystalline aggregate (jadeite-rock). Mohs 6.5–7. Specific gravity 3.30–3.36 (denser than nephrite — the diagnostic test). Color from Cr³⁺ (imperial green) or Fe (lavender, gray). Type B (polymer-impregnated) and C (dyed) treatments disclosed in the trade.
Principled BSDF defaults derived from the sphere matte finish. Reasonable seed for Blender, Substance, Keyshot, Rhino — tune per material.
# finish: matte albedo #3aa07a metallic 0.00 roughness 0.75 ior 1.45 transmission 0.00 clearcoat 0.00 sheen 0.00 anisotropic 0.00
{
"albedo": "#3aa07a",
"metallic": 0.0,
"roughness": 0.75,
"ior": 1.45,
"transmission": 0.0,
"clearcoat": 0.0,
"sheen": 0.0,
"anisotropic": 0.0
}
# Blender 4.x — Principled BSDF
# Jadeite (Imperial Jade) · finish: matte
import bpy
mat = bpy.data.materials.new(name="mat_gem_jade_jadeite")
mat.use_nodes = True
bsdf = mat.node_tree.nodes["Principled BSDF"]
bsdf.inputs["Base Color"].default_value = (0.0423, 0.3515, 0.1946, 1.0)
bsdf.inputs["Metallic"].default_value = 0.000
bsdf.inputs["Roughness"].default_value = 0.750
bsdf.inputs["IOR"].default_value = 1.450
bsdf.inputs["Transmission Weight"].default_value = 0.000
bsdf.inputs["Coat Weight"].default_value = 0.000
bsdf.inputs["Sheen Weight"].default_value = 0.000
bsdf.inputs["Anisotropic"].default_value = 0.000
# KeyShot 11+ — lux Python API, Generic material
# Jadeite (Imperial Jade) · finish: matte
# Run from Window → Scripting Console
import lux
mat = lux.createMaterial(name="mat_gem_jade_jadeite", materialType="Generic")
mat.setProperty("diffuse", (58, 160, 122)) # 8-bit sRGB
mat.setProperty("metallic", 0.000)
mat.setProperty("roughness", 0.750)
mat.setProperty("indexOfRefraction", 1.450)
mat.setProperty("transparency", 0.000)
mat.setProperty("coatingWeight", 0.000)
{
"_format": "Substance Designer / Painter \u2014 pbrMetalRough constants",
"_about": "Jadeite (Imperial Jade) \u00b7 finish: matte",
"baseColor": {
"r": 0.0423,
"g": 0.3515,
"b": 0.1946
},
"metallic": 0.0,
"roughness": 0.75,
"ior": 1.45,
"opacity": 1.0,
"anisotropyLevel": 0.0,
"_notes": "Channels listed are the standard Substance pbrMetalRough output. Drop into a Uniform Color node per channel, or as the constant input on a layered stack."
}
{
"asset": {
"version": "2.0",
"generator": "ForMatter"
},
"materials": [
{
"name": "mat_gem_jade_jadeite",
"pbrMetallicRoughness": {
"baseColorFactor": [
0.0423,
0.3515,
0.1946,
1.0
],
"metallicFactor": 0.0,
"roughnessFactor": 0.75
},
"extensions": {
"KHR_materials_ior": {
"ior": 1.45
}
}
}
]
}
# USD Preview Surface — UsdShade.MaterialLook prim attributes
# Jadeite (Imperial Jade) · finish: matte
def Material "mat_gem_jade_jadeite" {
token outputs:surface.connect = </mat_gem_jade_jadeite/PreviewSurface.outputs:surface>
def Shader "PreviewSurface" {
uniform token info:id = "UsdPreviewSurface"
color3f inputs:diffuseColor = (0.0423, 0.3515, 0.1946)
float inputs:metallic = 0.000
float inputs:roughness = 0.750
float inputs:ior = 1.450
float inputs:opacity = 1.000
float inputs:clearcoat = 0.000
token outputs:surface
}
}
A working library of materials and processes. Saves to this browser only — no account, no cloud.
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House vocabulary — terms ForMatter uses with intent.
Materials and processes for people who design and make things.
A local-first library of materials, processes, and applications, equal weight, citable everywhere. Part of the renato.design ecosystem — sibling of Plenum, Specimen, Ingenue, gesture, graf, and the Renato Rhino plug-ins. Form and matter, inseparable.
Half of teaching materials is teaching how the material is made into the thing. The standard subscription library was always light on that half. The wedge here isn't better samples or a prettier interface — it's treating Process as a peer entity, not a footnote.
Conway's Material World on raw materials, Lefteri's Making It on processes, Untracht and McCreight on metalsmithing, USDA Forest Products Lab on woods, GIA on gemstones, Schott / CoorsTek / Toray / Owens Corning datasheets, MakeItFrom for verifiable property numbers, ASM Handbook, ISO standards. Voice blocks: Barthes, Yanagi, Benjamin channeled within their philosophy; Lefteri verbatim. All cited.
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