Current price $19.99
Listing type Fixed Price Item
Location Arkansas US
Quantity sold 0
Quantity available 1
Seller shinyplunder (658)
Seller rating 99.5% positive feedback
Modified Item Yes
Country/Region Of Manufacture United States
Modification Description These have been broken in half or opened to create these specimens.
Featured Refinements Geode
227.0 Gr All Natural Calcite Geode Halves Lot
Dimensions: 91.0 mm x 65.0 mm x 40.0 mm
You will receive the exact geode photographed above ^
Item # 1811
FYI: Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable.
99.5% of buyers gave this seller positive feedback.