Remove gravel from silt veins, instead increasing it in the spoils

src/datagen/java/blusunrize/immersiveengineering/data/recipes/MiscRecipes.java

@@ -342,11 +342,10 @@ private void mineralMixes(RecipeOutput out)
 				.dimensionOverworld()
 				.biomeCondition(ImmutableSet.of(BiomeTags.IS_RIVER))
 				.addSoilSpoils()
-				.ore(Items.CLAY, .5f)
-				.ore(Items.SAND, .3f)
-				.ore(Items.GRAVEL, .2f)
+				.ore(Items.CLAY, .6f)
+				.ore(Items.SAND, .4f)
 				.weight(25)
-				.failchance(.05f)
+				.failchance(.2f)
 				.build(out, toRL("mineral/silt"));
 		MineralMixBuilder.builder()
 				.dimensionOverworld()
@@ -490,9 +489,8 @@ private void mineralMixes(RecipeOutput out)
 				.biomeCondition(ImmutableSet.of(BiomeTags.IS_RIVER))
 				.addSoilSpoils()
 				.ore(Tags.Items.GEMS_DIAMOND, .2f)
-				.ore(Items.CLAY, .3f)
-				.ore(Items.SAND, .3f)
-				.ore(Items.GRAVEL, .2f)
+				.ore(Items.CLAY, .4f)
+				.ore(Items.SAND, .4f)
 				.weight(15)
 				.failchance(.2f)
 				.build(out, toRL("mineral/alluvial_sift"));

src/datagen/java/blusunrize/immersiveengineering/data/recipes/builder/MineralMixBuilder.java

@@ -110,9 +110,9 @@ public MineralMixBuilder addOverworldSpoils()
 
 	public MineralMixBuilder addSoilSpoils()
 	{
-		return spoil(Items.COARSE_DIRT, 0.2f)
-				.spoil(Items.COBBLESTONE, 0.5f)
-				.spoil(Items.GRAVEL, 0.3f);
+		return spoil(Items.GRAVEL, 0.6f)
+				.spoil(Items.COBBLESTONE, 0.3f)
+				.spoil(Items.COARSE_DIRT, 0.1f);
 	}
 
 	public MineralMixBuilder addSeabedSpoils()