Add smooth quartz

mods/ITEMS/mcl_nether/init.lua

@@ -195,8 +195,17 @@ minetest.register_node("mcl_nether:quartz_pillar", {
 	_mcl_blast_resistance = 4,
 	_mcl_hardness = 0.8,
 })
-
-
+minetest.register_node("mcl_nether:quartz_smooth", {
+	description = "Smooth Quartz",
+	_doc_items_longdesc = doc.sub.items.temp.build,
+	stack_max = 64,
+	is_ground_content = false,
+	tiles = {"mcl_nether_quartz_block_bottom.png"},
+	groups = {pickaxey=1, quartz_block=1,building_block=1, material_stone=1},
+	sounds = mcl_sounds.node_sound_stone_defaults(),
+	_mcl_blast_resistance = 4,
+	_mcl_hardness = 0.8,
+})
 
 minetest.register_craftitem("mcl_nether:glowstone_dust", {
 	description = "Glowstone Dust",