Abyssal Dust

Implement only these approved requirements: - Register the ordinary custom crafting-material item with registry ID `abyssal_dust` and display name `Abyssal Dust`. - Use standard Minecraft inventory behavior and a maximum stack size of 64. - Present it as a rare magical crafting material with no passive, consumable, combat, or right-click behavior in this foundational version. - Provide the required item model, texture reference, translation entry, and registry integration through the normal output pipeline, leaving the item suitable for future recipe and interaction expansion. - Create the abyssal_dust texture: Minecraft-inspired 16x16 pixel-art inventory icon for Abyssal Dust: a distinctive, compact asymmetrical cluster of angular magical dust particles and crystalline fragments, with an almost light-absorbing black mass as the overwhelmingly dominant color. Add only tiny deliberate accents of deep green, muted yellow, swiftness-potion blue, and darker blue, suggesting multiple restrained magical energies. Crisp pixel clusters, strong readable silhouette unlike vanilla gunpowder or ordinary dust, ancient abyssal and unnatural atmosphere. No purple, smooth gradients, excessive glow, photorealism, or visual clutter.