Purple Gypsum – Acicular Form – Guizhou Province, China

Gypsum is a sulfate mineral with the chemical formula CaSO₄·2H₂O, crystallizing in the monoclinic crystal system. With a Mohs hardness of 2, gypsum is relatively soft and exhibits a vitreous to silky luster, making it suitable for detailed and delicate formations. This particular specimen showcases a captivating example of botryoidal formation, characterized by smooth, rounded surfaces that resemble a cluster of grapes or, in this case, intricate flower-like structures.

Originating from the Guizhou Province in China, a region known for its diverse and high-quality mineral deposits, this gypsum specimen reflects the unique geological conditions of its locality. The soft white to pale cream coloration and translucent to opaque crystal surfaces enhance its aesthetic appeal, while the detailed flower formation highlights the mineral’s natural growth patterns.

Weighing approximately 35 grams and measuring 29x30x37 mm, this collectible specimen is well-suited for display in a cabinet or on a desk, appealing to both mineral enthusiasts and collectors who appreciate mineralogical diversity and natural artistry. Its rarity lies in the quality of the botryoidal texture combined with the floral appearance, which is less commonly seen in gypsum specimens.

Due to gypsum’s softness, it is advisable to handle the specimen with care and avoid exposure to water or humid environments, as it is slightly soluble and can be damaged by moisture. Proper storage in a dry place will help preserve its integrity and visual appeal over time.

China — dominant modern source for collector-grade specimens since the 1990s.