Desert Rose (Gypsum crystal cluster / mineral specimen, frequently mistaken for or associated with fossil-rich gypsum beds)
N/A (Mineral specimen: Gypsum / Selenite / Aragonite cluster) • Mineral Specimen / Crystal Cluster (Note: The provided image displays an inorganic mineral crystal aggregate, specifically an aragonite or gypsum desert rose cluster, rather than a true biological fossil)
Geological Period
Quaternary to Neogene (common formation era for modern evaporite deposits)
Estimated Age
Recent to Holocene (typically formed in geologically recent arid evaporite environments, thousands to millions of years old)
Preservation Type
Evaporite crystal precipitation (inorganic mineral formation)
Condition Assessment
Good (small, intact crystal cluster with minor wear on crystal terminations)
Taxonomic Classification
N/A (Inorganic mineral aggregate, calcium sulfate dihydrate or calcium carbonate)
Morphological Description
Cluster of translucent, light-brownish to honey-colored bladed prismatic crystals radiating outwards in a rosette or clustered habit, exhibiting sharp crystal faces and vitreous luster.
Rock Matrix
Evaporite sediment / None attached (isolated crystal cluster)
Formation & Location
Arid salt flats, desert sabkhas, and evaporite basins globally (e.g., Sahara Desert, Tri-State area in USA, Spain)
Size & Dimensions
Approximately 20 mm to 25 mm in maximum span, comparable in scale to a 2 Euro coin (25.75 mm diameter)
Value & Rarity
Estimated Market Value
5 USD to 15 USD
Auction Estimate
10 USD to 20 USD
Rarity Assessment
Common
Scientific Significance
Illustrates evaporite mineral precipitation processes in hyper-arid environments, serving as an indicator of ancient or modern paleoclimate evaporation rates.
Preparation Recommendations
Requires gentle dry brushing to remove surface dust. Must be kept away from high humidity and water, as gypsum is soft (Mohs 2) and slightly soluble.
Notable Features
Attractive amber-pinkish coloration and compact cluster formation resembling a floral rosette, making it a popular display specimen despite not being a true fossil.