diff --git a/overviewer_core/src/mc_id.h b/overviewer_core/src/mc_id.h
index 4ae570d..0280b89 100644
--- a/overviewer_core/src/mc_id.h
+++ b/overviewer_core/src/mc_id.h
@@ -265,6 +265,8 @@ enum mc_block_id {
     block_basalt = 1001,
     block_polished_basalt = 1002,
     block_soul_campfire = 1003,
+    block_blackstone = 1004,
+    block_netherite_block = 1005,
 
     block_prismarine_stairs = 11337,
     block_dark_prismarine_stairs = 11338,
diff --git a/overviewer_core/textures.py b/overviewer_core/textures.py
index bb9994c..59e8e55 100644
--- a/overviewer_core/textures.py
+++ b/overviewer_core/textures.py
@@ -5705,3 +5705,11 @@ def basalt(self, blockid, data):
         return self.build_full_block(side.rotate(90), None, None, top, side.rotate(90))
     elif data == 2: # north-south orientation
         return self.build_full_block(side, None, None, side.rotate(270), top)
+
+
+# Blackstone block
+block(blockid=[1004], top_image="assets/minecraft/textures/block/blackstone_top.png",
+      side_image="assets/minecraft/textures/block/blackstone.png")
+
+# Netherite
+block(blockid=[1005], top_image="assets/minecraft/textures/block/netherite_block.png")
diff --git a/overviewer_core/world.py b/overviewer_core/world.py
index e2535eb..cfe9505 100644
--- a/overviewer_core/world.py
+++ b/overviewer_core/world.py
@@ -691,6 +691,8 @@ class RegionSet(object):
             'minecraft:basalt':         (1001, 0),
             'minecraft:polished_basalt':  (1002, 0),
             'minecraft:soul_campfire':  (1003, 0),
+            'minecraft:blackstone':  (1004, 0),
+            'minecraft:netherite_block':  (1005, 0),
 
             # New blocks
             'minecraft:carved_pumpkin': (11300, 0),