diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb974e3..88a7f88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@
 - Added the Magic Shards Ore which can be found in the Lava World
 - Remove the Slime and Mushroom world because adding content for all 5 different worlds is gonna be hard.
 - Water and Lava now have "chemical reactions"
+- Added Calcite
 - A lot of other changes that I forgot to document
 
 ## [Oct 19th 2024] Bugfix Update
diff --git a/mods/ITEMS/pyutest_blocks/basic.lua b/mods/ITEMS/pyutest_blocks/basic.lua
index 9943eeb..a832d16 100644
--- a/mods/ITEMS/pyutest_blocks/basic.lua
+++ b/mods/ITEMS/pyutest_blocks/basic.lua
@@ -86,6 +86,12 @@ PyuTest.make_building_blocks("pyutest_blocks:tuff", "Tuff", {"pyutest-tuff.png"}
   cracky = PyuTest.BLOCK_NORMAL,
 })
 
+PyuTest.make_building_blocks("pyutest_blocks:calcite", "Calcite", {"pyutest-calcite.png"}, nil, {
+  ground = 1,
+  stone = 1,
+  cracky = PyuTest.BLOCK_NORMAL,
+})
+
 PyuTest.make_building_blocks("pyutest_blocks:stone_bricks", "Stone Bricks", {
   "pyutest-bricks2.png"
 }, "#82807c", {
diff --git a/mods/WORLD/pyutest_mapgen/api.lua b/mods/WORLD/pyutest_mapgen/api.lua
index b721eae..fdf774e 100644
--- a/mods/WORLD/pyutest_mapgen/api.lua
+++ b/mods/WORLD/pyutest_mapgen/api.lua
@@ -41,7 +41,7 @@ PyuTest.is_flat = function()
   return minetest.get_mapgen_setting("mg_name") == "flat"
 end
 
-PyuTest.SPECIALSTONE_NOISE_PARAMS = {
+PyuTest.SPECIAL_STONE_NOISE_PARAMS = {
   offset = 0,
   scale = 1,
   spread = {x = 250, y = 250, z = 250},
@@ -52,6 +52,17 @@ PyuTest.SPECIALSTONE_NOISE_PARAMS = {
   flags = "defaults"
 }
 
+PyuTest.MOUNTAIN_STRIP_NOISE_PARAMS = {
+  offset = 0,
+  scale = 1,
+  spread = {x = 512, y = 512, z = 512},
+  -- seed = 8425,
+  octaves = 6,
+  persist = 0.4,
+  lacunarity = 2,
+  flags = "defaults"
+}
+
 PyuTest.BIOME_TOPS = {
   lowland = 10,
   normal = 30,
diff --git a/mods/WORLD/pyutest_mapgen/mapgen.lua b/mods/WORLD/pyutest_mapgen/mapgen.lua
index 52ba473..ffef301 100644
--- a/mods/WORLD/pyutest_mapgen/mapgen.lua
+++ b/mods/WORLD/pyutest_mapgen/mapgen.lua
@@ -7,7 +7,7 @@ minetest.register_alias("mapgen_singlenode", "air")
 local mg_flags = minetest.settings:get_flags("mg_flags")
 local mg_name = minetest.get_mapgen_setting("mg_name")
 minetest.set_mapgen_setting(string.format("mg%s_cavern_threshold", mg_name), "0.20", true)
-minetest.set_mapgen_setting(string.format("mg%s_mount_zero_level", mg_name), "1.1", true)
+minetest.set_mapgen_setting(string.format("mg%s_mount_zero_level", mg_name), "1.4", true)
 
 mg_flags.caverns = true
 mg_flags.dungeons = false
diff --git a/mods/WORLD/pyutest_ores/init.lua b/mods/WORLD/pyutest_ores/init.lua
index 46d97fa..9683cc2 100644
--- a/mods/WORLD/pyutest_ores/init.lua
+++ b/mods/WORLD/pyutest_ores/init.lua
@@ -10,7 +10,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 minetest.register_ore({
@@ -22,7 +22,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 minetest.register_ore({
@@ -34,7 +34,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 minetest.register_ore({
@@ -46,7 +46,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 minetest.register_ore({
@@ -58,7 +58,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_DEEP_OCEAN_MIN,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 PyuTest.ORE_STONES = {
@@ -78,7 +78,7 @@ minetest.register_ore({
   clust_size = 5,
   y_max = PyuTest.OVERWORLD_SURFACE_BOTTOM - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 -- Overworld ores
diff --git a/mods/WORLD/pyutest_overworld/features.lua b/mods/WORLD/pyutest_overworld/features.lua
index f4512b0..2592464 100644
--- a/mods/WORLD/pyutest_overworld/features.lua
+++ b/mods/WORLD/pyutest_overworld/features.lua
@@ -18,5 +18,28 @@ minetest.register_ore({
   clust_num_ores = 1,
   clust_size = 1,
   y_max = PyuTest.OVERWORLD_TOP,
+  y_min = PyuTest.BIOME_TOPS.normal,
+})
+
+minetest.register_ore({
+  ore_type = "scatter",
+  ore = "pyutest_blocks:lava_source",
+  wherein = PyuTest.ORE_STONES,
+  clust_scarcity = 16 * 16 * 16,
+  clust_num_ores = 1,
+  clust_size = 1,
+  y_max = PyuTest.OVERWORLD_DEEP_OCEAN_MIN - 1,
   y_min = PyuTest.OVERWORLD_BOTTOM,
 })
+
+-- Mountain Strips
+minetest.register_ore({
+  ore_type = "sheet",
+  ore = "pyutest_blocks:calcite_block",
+  wherein = "pyutest_blocks:stone_block",
+  y_max = PyuTest.BIOME_TOPS.mountains,
+  y_min = PyuTest.BIOME_TOPS.normal,
+  noise_params = PyuTest.MOUNTAIN_STRIP_NOISE_PARAMS,
+  column_height_max = 12,
+  column_height_min = 8,
+})
diff --git a/mods/WORLD/pyutest_worlds/ice.lua b/mods/WORLD/pyutest_worlds/ice.lua
index a0b5a75..3bf2368 100644
--- a/mods/WORLD/pyutest_worlds/ice.lua
+++ b/mods/WORLD/pyutest_worlds/ice.lua
@@ -20,7 +20,7 @@ PyuTest.IceWorld:register_ore({
   clust_num_ores = 35,
   clust_size = 5,
   biomes = {icy_cavern},
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 PyuTest.IceWorld:register_ore({
@@ -31,5 +31,5 @@ PyuTest.IceWorld:register_ore({
   clust_num_ores = 6,
   clust_size = 5,
   biomes = {icy_cavern},
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
diff --git a/mods/WORLD/pyutest_worlds/lava.lua b/mods/WORLD/pyutest_worlds/lava.lua
index dfe8427..036f2bb 100644
--- a/mods/WORLD/pyutest_worlds/lava.lua
+++ b/mods/WORLD/pyutest_worlds/lava.lua
@@ -31,7 +31,7 @@ PyuTest.LavaWorld:register_ore({
   clust_num_ores = 6,
   clust_size = 5,
   biomes = {lava_cavern},
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 PyuTest.LavaWorld:register_ore({
@@ -42,7 +42,7 @@ PyuTest.LavaWorld:register_ore({
   clust_num_ores = 1,
   clust_size = 2,
   biomes = PyuTest.LavaWorld.biome_names,
-  noise_params = PyuTest.SPECIALSTONE_NOISE_PARAMS
+  noise_params = PyuTest.SPECIAL_STONE_NOISE_PARAMS
 })
 
 PyuTest.make_ore("pyutest_worlds:magic_shards_ore", "Magic Shards Ore", {
diff --git a/textures/pyutest-calcite.png b/textures/pyutest-calcite.png
new file mode 100644
index 0000000..b874ad6
Binary files /dev/null and b/textures/pyutest-calcite.png differ