Gaspeite is a lesser-known gemstone that captivates with its vibrant green hue, often overshadowed by more popular jewels. This stone stands out due to its exceptional color pattern, which ranges from yellowish-green to bright green, making it visually striking and appealing. Gaspeite forms as a secondary mineral through the alteration of surrounding rock, influenced by natural processes like weathering. Originating primarily from western Australia and Quebec, Canada, gaspeite belongs to the calcite mineral group and is characterized by its rarity, intriguing both collectors and jewelry enthusiasts. Its chemical composition includes nickel carbonate, which contributes to its unique spectrum of green shades. Gaspeite is considered rare, with significant mining deposits in both Australia and Canada now depleted on a commercial scale. The gemstone is not only valued for its beauty but also for its purported healing properties and cultural significance in various forms of jewelry, making it a gem worthy of attention. The mineral's chemical formula is (Ni, Mg, Fe)CO3, indicating its composition, primarily consisting of nickel, along with varying amounts of magnesium and iron. This variability influences the color and characteristics of individual specimens. Gaspeite typically exhibits colors ranging from apple-green to olive-green and may show slight variations due to its solid solution series. In terms of transparency, gaspeite ranges from opaque to transparent in rare cases, which enhances its versatility for different applications. Resin-treated gaspeite can be used to enhance its strength and appearance, giving the stone a glossier finish and sometimes a fluorescent quality. Overall, gaspeite is a fascinating gemstone that deserves recognition for its beauty and uniqueness.