diff --git a/src/main/resources/data/c/tags/item/gems.json b/src/main/resources/data/c/tags/item/gems.json
index ff52c61141..b2d47076de 100644
--- a/src/main/resources/data/c/tags/item/gems.json
+++ b/src/main/resources/data/c/tags/item/gems.json
@@ -1,5 +1,5 @@
 {
   "values": [
-    "spectrum:gemstone_shards"
+    "#spectrum:gemstone_shards"
   ]
 }
\ No newline at end of file
diff --git a/src/main/resources/data/spectrum/tags/item/blackslag_ores.json b/src/main/resources/data/spectrum/tags/item/blackslag_ores.json
new file mode 100644
index 0000000000..37667a9abf
--- /dev/null
+++ b/src/main/resources/data/spectrum/tags/item/blackslag_ores.json
@@ -0,0 +1,19 @@
+{
+  "values": [
+    "spectrum:blackslag_coal_ore",
+    "spectrum:blackslag_copper_ore",
+    "spectrum:blackslag_iron_ore",
+    "spectrum:blackslag_gold_ore",
+    "spectrum:blackslag_diamond_ore",
+    "spectrum:blackslag_redstone_ore",
+    "spectrum:blackslag_lapis_ore",
+    "spectrum:blackslag_emerald_ore",
+    "spectrum:blackslag_shimmerstone_ore",
+    "spectrum:blackslag_malachite_ore",
+    "spectrum:blackslag_amethyst_ore",
+    "spectrum:blackslag_citrine_ore",
+    "spectrum:blackslag_topaz_ore",
+    "spectrum:blackslag_onyx_ore",
+    "spectrum:blackslag_moonstone_ore"
+  ]
+}
\ No newline at end of file