Pale pink quartz — almost always cloudy rather than transparent because the color centers are paired with microscopic mineral inclusions that scatter light. Typically cut as cabochon or carved bead, rarely as faceted gemstone. The most common pink stone in the lapidary trade and a bedrock material of decorative-object production worldwide.
SiO₂ in trigonal crystal system, Mohs 7. Color from Ti⁴⁺ + Fe²⁺ trace impurities, paired with sub-microscopic inclusions of dumortierite-like fibers that scatter blue light and reinforce pink coloration. Massive habit dominant — well-formed faceting rough rare. Specific gravity 2.65. Refractive indices 1.544 / 1.553.
Principled BSDF defaults derived from the sphere crystalline finish. Reasonable seed for Blender, Substance, Keyshot, Rhino — tune per material.
# finish: crystalline albedo #e8c0c8 metallic 0.00 roughness 0.05 ior 2.42 transmission 1.00 clearcoat 0.00 sheen 0.00 anisotropic 0.00
{
"albedo": "#e8c0c8",
"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
# Rose Quartz · finish: crystalline
import bpy
mat = bpy.data.materials.new(name="mat_gem_quartz_rose")
mat.use_nodes = True
bsdf = mat.node_tree.nodes["Principled BSDF"]
bsdf.inputs["Base Color"].default_value = (0.807, 0.5271, 0.5776, 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
# Rose Quartz · finish: crystalline
# Run from Window → Scripting Console
import lux
mat = lux.createMaterial(name="mat_gem_quartz_rose", materialType="Generic")
mat.setProperty("diffuse", (232, 192, 200)) # 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": "Rose Quartz \u00b7 finish: crystalline",
"baseColor": {
"r": 0.807,
"g": 0.5271,
"b": 0.5776
},
"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_quartz_rose",
"pbrMetallicRoughness": {
"baseColorFactor": [
0.807,
0.5271,
0.5776,
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
# Rose Quartz · finish: crystalline
def Material "mat_gem_quartz_rose" {
token outputs:surface.connect = </mat_gem_quartz_rose/PreviewSurface.outputs:surface>
def Shader "PreviewSurface" {
uniform token info:id = "UsdPreviewSurface"
color3f inputs:diffuseColor = (0.807, 0.5271, 0.5776)
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.
Nothing saved yet. Open a material, process, or application and tap + project.
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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