java - 3D block model for Minecraft works as item but becomes a

I have a block that is a 3d model that's going to be similar to a skull. It renders the model as a item but when I place it it becomes a null block. Originally it was going to be a armor piece but

Hopper – Minecraft Wiki

in this 3d model, you can see the minecraft wooden cube. this 3d model of minecraft cube was modeled by blender version 2.83.2. for this model, i

minecraft block Low-poly 3D Model

Observer – Minecraft Wiki

Error happened when uploaded a 3D Model block into Minecraft. - Discussion - Minecraft: Java Edition - Minecraft Forum - Minecraft Forum

overrides value breaks item model - Resource Pack Help - Resource Packs - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum

Modding By Kaupenjoe: Forge Modding for Minecraft 1-18-1, Kaupenjoe (Nico)

How To Make CUSTOM ITEM MODELS In Minecraft!

Minecraft Weapon Attack VFX - Blockbench - Buy Royalty Free 3D model by ArtsByKev Productions (@ArtsByKev) [4ec9286]

Bedrock Modeling and Animation - Blockbench Wiki

I was trying to import my blender model into blockbench for the first time but whenever I try to convert it to a java block/item nothing happens it just goes blank

teyokuma's 3D Item Models - Minecraft Resource Packs - CurseForge

Help please java 3d block model : r/Blockbench

How to make a 3D Models Resourcepack Series