Garnierite Crystal Point | Polished TowerGarnierite from Madagascar is a visually striking nickel rich mineral typically found in weathered ultramafic rocks, where tropical conditions have driven intense alteration over long periods of time. Rather than being a single mineral species, garnierite is a general term for a group of green nickel bearing phyllosilicates, often forming in smooth, vein like masses. Its coloration ranges from pale mint to rich apple and deep emerald green, sometimes