Spelunkery

New Features:

• Added Raw Magnetite Nuggets (rare drop from Deepslate Iron Ore, can be used to craft Raw Magnetite if you can't find a large iron vein where Raw Magnetite Blocks are usually found)

Fixes:

• Nephrite Diodes can now be mined with a pickaxe
• Mine-o-mite no longer destroys blocks underwater
• Fixed mass amounts of falling sand in deserts by replacing their generation with packed mud
• Fixed log spam caused by rock salt terrain feature
• Tweaked lush caves and desert terrain strata