227.0 Gr All Natural Calcite Geode Halves Lot

Category Collectibles Rocks, Fossils & Minerals Crystals & Mineral Specimens Display Specimens

Current price $19.99

Listing type Fixed Price Item

Location Arkansas US

Quantity sold 0

Quantity available 1

Bids 0

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

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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.

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