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. Or grab the whole library at once: ForMaterials library →
# 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 thickness 0.80 attenuation_distance 1.50
{
"albedo": "#e8b8b0",
"metallic": 0.0,
"roughness": 0.05,
"ior": 2.42,
"transmission": 1.0,
"clearcoat": 0.0,
"sheen": 0.0,
"anisotropic": 0.0,
"thickness": 0.8,
"attenuation_distance": 1.5
}
# 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
}
}
GIA beryl-family grading; ICA Colored Gemstone Association.
House vocabulary — terms ForMatter uses with intent.
Materials and processes for people who design and make things.
A local-first library of materials, processes, applications, and finishes — equal weight, citable everywhere, with cost-over-volume curves, trade-off profiles, equipment-tier filters, and second-life paths layered onto the data so a student can move from "what is this" toward "what's actually buildable here, now, by me." 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, Forty's Concrete and Culture, Sparke's Design in Context, Bürdek's Design: History, Theory and Practice of Product Design, Schröpfer's Material Design on materials in architecture, Winchester's The Perfectionists on tolerance, Minshall's Your Life Is Manufactured on the global supply chain, von Busch's Making Trouble on material activism, Were's How Materials Matter, Hegger / Drexler / Zeumer's Basics Materials, 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. Museum holdings draw from the Met, MAD, V&A, Smithsonian American Art Museum, Newark Museum of Art, British Museum, Heard Museum, Smithsonian NMAI, Eiteljorg Museum, Philadelphia Museum of Art, Cranbrook Art Museum, and Grand Rapids Art Museum — collection-record permalinks only, designer overview pages and exhibition listings excluded. Voice blocks now ride on every entry kind — material, process, application, and finish — and include Ruskin on iron, Anni Albers on twining, Greg Lynn on the shred-and-teeth NURBS lineage, Pugin on the metal that won't be hammered, Barthes / Yanagi / Benjamin channeled within their philosophy; Sparke, Bürdek, Forty, Conway, Schröpfer, Minshall, von Busch, Lefteri, Pat Pruitt, Mary Lee Hu, Tom Joyce, Albert Paley, and the rest of the contemporary makers quoted verbatim with citation. All cited.
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