diff --git a/changelog.txt b/changelog.txt
index ced7479..c919ab4 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -5,6 +5,8 @@ Date: 2021-01-26
     - K2: Dirty water filtration quantity
     - Cermet requires 2 zirconia (result quantity also increased by 1)
     - Minor compatibility tweaks
+  Fixes:
+    - Most rocks should now have Zircon in Space Exploration, too
 ---------------------------------------------------------------------------------------------------
 Version: 0.5.2
 Date: 2021-01-20
diff --git a/data-updates.lua b/data-updates.lua
index 755660e..42a1012 100644
--- a/data-updates.lua
+++ b/data-updates.lua
@@ -7,6 +7,16 @@ require("strange-matter")
 
 local util = require("data-util");
 
-util.add_minable_result("simple-entity", "rock-huge", {name="zircon", amount_min = 15, amount_max=25})
-util.add_minable_result("simple-entity", "sand-rock-big", {name="zircon", amount_min = 15, amount_max=25})
-util.add_minable_result("simple-entity", "rock-big", {name="zircon", amount_min = 15, amount_max=25})
+
+-- Add zircon to rocks
+local min = 15
+local max = 23
+if mods["space-exploration"] then
+  min = 6
+  max = 10
+end
+for _, e in pairs(data.raw["simple-entity"]) do
+  if (e.subgroup == "grass" or e.subgroup == "wrecks") and e.name:match("rock%-") then
+    util.add_minable_result("simple-entity", e.name, {name="zircon", amount_min = min, amount_max=max})
+  end
+end