Beryl colored peach-pink by traces of manganese, named after J.P. Morgan in 1911 by Tiffany & Co.'s gemologist George Frederick Kunz. The romantic alternative to pink sapphire when budget matters — softer color, larger eye-clean sizes available at moderate cost, dependable brilliance from a beryl-family hardness. Usually heat-treated at 400 °C to remove yellow trace components and clarify the pink.
Be₃Al₂Si₆O₁₈:Mn²⁺ in hexagonal crystal system, Mohs 7.5–8. Specific gravity 2.71. Mn provides peach-pink color; routine heat treatment (~400 °C) drives off yellow component, intensifying pink. Eye-clean stones routine at carat sizes that would be impossible for natural pink sapphire of equivalent grade.
Principled BSDF defaults derived from the sphere crystalline finish. Reasonable seed for Blender, Substance, Keyshot, Rhino — tune per material.
# finish: crystalline albedo #e8b8b0 metallic 0.00 roughness 0.05 ior 2.42 transmission 1.00 clearcoat 0.00 sheen 0.00 anisotropic 0.00
{
"albedo": "#e8b8b0",
"metallic": 0.0,
"roughness": 0.05,
"ior": 2.42,
"transmission": 1.0,
"clearcoat": 0.0,
"sheen": 0.0,
"anisotropic": 0.0
}
# Blender 4.x — Principled BSDF
# Morganite · finish: crystalline
import bpy
mat = bpy.data.materials.new(name="mat_gem_morganite")
mat.use_nodes = True
bsdf = mat.node_tree.nodes["Principled BSDF"]
bsdf.inputs["Base Color"].default_value = (0.807, 0.4793, 0.4342, 1.0)
bsdf.inputs["Metallic"].default_value = 0.000
bsdf.inputs["Roughness"].default_value = 0.050
bsdf.inputs["IOR"].default_value = 2.420
bsdf.inputs["Transmission Weight"].default_value = 1.000
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
# Morganite · finish: crystalline
# Run from Window → Scripting Console
import lux
mat = lux.createMaterial(name="mat_gem_morganite", materialType="Generic")
mat.setProperty("diffuse", (232, 184, 176)) # 8-bit sRGB
mat.setProperty("metallic", 0.000)
mat.setProperty("roughness", 0.050)
mat.setProperty("indexOfRefraction", 2.420)
mat.setProperty("transparency", 1.000)
mat.setProperty("coatingWeight", 0.000)
{
"_format": "Substance Designer / Painter \u2014 pbrMetalRough constants",
"_about": "Morganite \u00b7 finish: crystalline",
"baseColor": {
"r": 0.807,
"g": 0.4793,
"b": 0.4342
},
"metallic": 0.0,
"roughness": 0.05,
"ior": 2.42,
"opacity": 0.0,
"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_morganite",
"pbrMetallicRoughness": {
"baseColorFactor": [
0.807,
0.4793,
0.4342,
1.0
],
"metallicFactor": 0.0,
"roughnessFactor": 0.05
},
"extensions": {
"KHR_materials_ior": {
"ior": 2.42
},
"KHR_materials_transmission": {
"transmissionFactor": 1.0
}
}
}
]
}
# USD Preview Surface — UsdShade.MaterialLook prim attributes
# Morganite · finish: crystalline
def Material "mat_gem_morganite" {
token outputs:surface.connect = </mat_gem_morganite/PreviewSurface.outputs:surface>
def Shader "PreviewSurface" {
uniform token info:id = "UsdPreviewSurface"
color3f inputs:diffuseColor = (0.807, 0.4793, 0.4342)
float inputs:metallic = 0.000
float inputs:roughness = 0.050
float inputs:ior = 2.420
float inputs:opacity = 0.000
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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