diff --git a/mods/jaydsmods.js b/mods/jaydsmods.js
index 1070777b..f49b3066 100644
--- a/mods/jaydsmods.js
+++ b/mods/jaydsmods.js
@@ -16,7 +16,7 @@ elements.tsar_bomba = {
     ],
     category: "weapons",
     state: "solid",
-    density: 1300,
+    density: 1700,
     excludeRandom: true,
     cooldown: defaultCooldown
 }
@@ -28,4 +28,24 @@ elements.meese = {
         "XX|M1|XX",
     ],
      category: "life"
-    }
\ No newline at end of file
+    },
+elements.blackpowder = {
+    color: ["#555D50","#36454F"],
+    behavior: behaviors.STURDYPOWDER,
+    category: "powders",
+    burn: 100,
+    burnTime: 250,
+    tempHigh: 292,
+    state: "solid",
+    density: 5150,
+    },
+elements.rp1= {
+    color: "#db5968",
+    behavior: behaviors.LIQUID,
+    category: "liquids",
+    state: "liquid",
+    density: 1700,
+    alias: "rocket propellant 1",
+    burn: 100,
+    burnTime: 400,
+    };
\ No newline at end of file
diff --git a/mods/volcanic_expansion.js b/mods/volcanic_expansion.js
new file mode 100644
index 00000000..8dd3eb56
--- /dev/null
+++ b/mods/volcanic_expansion.js
@@ -0,0 +1,93 @@
+elements.obsidian = {
+	color: ["#343434", "#313639"],
+	behavior: behaviors.SOLID,
+	category: "land",
+	state: "solid",
+    density: 2380,
+    tempHigh: 900,
+    stateHigh: "magma",
+    breakInto: "obsidian_shard",
+    reactions: {
+        "sand": { elem1: "obsidian_shard" },
+        "dirt": { elem1: "obsidian_shard" },
+        "rock": { elem1: "obsidian_shard" },
+        "mudstone": { elem1: "obsidian_shard" },
+        "packed_snow": { elem1: "obsidian_shard" },
+        "gravel": { elem1: "obsidian_shard" },
+        "clay": { elem1: "obsidian_shard" },
+        "clay_soil": { elem1: "obsidian_shard" },
+        "permafrost": { elem1: "obsidian_shard" },
+        "mulch": { elem1: "obsidian_shard" },
+        "basalt": { elem1: "obsidian_shard" },
+        "tuff": { elem1: "mud" },
+        "limestone": { elem1: "obsidian_shard" },
+        "quicklime": { elem1: "obsidian_shard" },
+        "slaked_lime": { elem1: "obsidian_shard" },
+        }
+    },
+    elements.obsidian_shard = {
+	color: ["#343434", "#313639"],
+	behavior: behaviors.POWDER,
+	category: "powders",
+	state: "solid",
+    density: 2380,
+    tempHigh: 900,
+    stateHigh: "magma",
+    reactions: {
+            "glue": { elem1: "obsidian" },
+            }
+    },
+elements.pumice = {
+    color: "#bac0b4",
+    behavior: behaviors.POWDER,
+    category: "land",
+    state: "solid",
+    density: 550,
+    tempHigh: 900,
+    stateHigh: "magma",
+    hardness: 0.5,
+    },
+elements.magma.stateLow = ["basalt","basalt","basalt","pumice","doritoite","basalt","rock","obsidian_shard","diorite","andesite"],
+    elements.eruption = {
+    color:  ["#ff6f00","#ff8c00","#ff4d00"],
+    behavior: [
+        "XX|M1|XX",
+        "XX|DL%1|XX",
+        "CR:magma|CR:magma|CR:magma",
+    ],
+    category: "weapons",
+    state: "solid",
+    temp:1200,
+    density: 2725,
+},
+elements.andesite = {
+    color: "#777C7C",
+    behavior: behaviors.SOLID,
+    category: "land",
+    state: "solid",
+    density: 2771,
+    tempHigh: 900,
+    stateHigh: "magma",
+    },
+    elements.diorite = {
+    color: ["#d4d4d4","#2b2b2b"],
+    behavior: behaviors.SOLID,
+    category: "land",
+    state: "solid",
+    density: 2900,
+    tempHigh: 900,
+    stateHigh: "magma",
+    },
+    elements.doritoite = {
+    color: ["#ff5349","#f2ba49"],
+    behavior: behaviors.POWDER,
+    category: "food",
+    state: "solid",
+    density: 157.8,
+    tempHigh: 900,
+    stateHigh: "magma",
+    reactions: {
+            "head": { elem1: "null" },
+            },
+    isFood: true
+    };
\ No newline at end of file