Add more precious stone ores

mods/MAPGEN/biomes/central_australia.lua

@@ -71,6 +71,19 @@ minetest.register_ore({
 	},
 })
 
+-- Smoky Quartz (Kalkarindji)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:granite_with_smoky_quartz",
+	wherein =        {"base:granite"},
+	biomes =         {"central_australia"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          19,
+})
+
 -- Uranium (Olympic Dam)
 minetest.register_ore({
 	ore_type =        "scatter",

mods/MAPGEN/biomes/eastern_coasts.lua

@@ -90,6 +90,45 @@ minetest.register_ore({
 	},
 })
 
+-- Amethyst (Oban River)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_amethyst",
+	wherein =        {"base:stone"},
+	biomes =         {"eastern_coasts"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          120,
+})
+
+-- Citrine (Oban River)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_citrine",
+	wherein =        {"base:stone"},
+	biomes =         {"eastern_coasts"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          120,
+})
+
+-- Smoky Quartz (Kingsgate)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_smoky_quartz",
+	wherein =        {"base:stone"},
+	biomes =         {"eastern_coasts"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          115,
+})
+
 
 --
 -- Decorations

mods/MAPGEN/biomes/flinders_lofty.lua

@@ -63,6 +63,19 @@ minetest.register_ore({
 	},
 })
 
+-- Jade (Cowell)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_jade",
+	wherein =        {"base:stone"},
+	biomes =         {"flinders_lofty"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          2,
+})
+
 -- Marble (Penrice)
 minetest.register_ore({
 	ore_type =        "sheet",
@@ -73,7 +86,7 @@ minetest.register_ore({
 	clust_size =      3,
 	biomes =          {"flinders_lofty"},
 	y_min =           -31,
-	y_max =           -5,
+	y_max =           34,
 	noise_threshold = 0.4,
 	noise_params =    {offset=0, scale=15, spread={x=150, y=150, z=150}, seed=23, octaves=3, persist=0.70}
 })

mods/MAPGEN/biomes/murray_darling_basin.lua

@@ -39,7 +39,7 @@ minetest.register_ore({
 	clust_size =      5,
 	biomes =          {"murray_darling_basin"},
 	y_min =           -31,
-	y_max =           32,
+	y_max =           33,
 	noise_threshold = 1.5,
 	noise_params =    {
 		offset =  0,
@@ -51,6 +51,19 @@ minetest.register_ore({
 	},
 })
 
+-- Amethyst (Broken Hill)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_amethyst",
+	wherein =        {"base:stone"},
+	biomes =         {"murray_darling_basin"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          33,
+})
+
 --Copper (Cadia)
 minetest.register_ore({
 	ore_type =       "scatter",

mods/MAPGEN/biomes/pilbara.lua

@@ -61,7 +61,7 @@ minetest.register_ore({
 	clust_size =      3,
 	biomes =          {"pilbara"},
 	y_min =           -31,
-	y_max =           -5,
+	y_max =           24,
 	noise_threshold = 0.4,
 	noise_params =    {offset=0, scale=15, spread={x=150, y=150, z=150}, seed=23, octaves=3, persist=0.70}
 })

mods/MAPGEN/biomes/tasmania.lua

@@ -68,6 +68,19 @@ minetest.register_ore({
 	y_max =          31000,
 })
 
+-- Agate (Lune River)
+minetest.register_ore({
+	ore_type =       "scatter",
+	ore =            "base:stone_with_agate",
+	wherein =        {"base:stone"},
+	biomes =         {"tasmania"},
+	clust_scarcity = 3375,
+	clust_num_ores = 3,
+	clust_size =     2,
+	y_min =          -31,
+	y_max =          12,
+})
+
 -- Tin
 minetest.register_ore({
 	ore_type =       "scatter",