Sweetwater Calcite on Matrix

Sweetwater Calcite on Matrix
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A very common mineral found throughout the world in sedimentary, metamorphic, and igneous rocks. “ubiquitous mineral”. Calcite is the principal mineral in limestone and marble, two very common rocks that make up a significant portion of the Earth’s crust.
Limestone is a sedimentary rock, comprised mostly of calcite. Marble is a metamorphic rock that forms when limestone undergoes heat and pressure. Marble has been used for millennia for monuments and sculptures. The lack of porosity allows it to stand up well to weathering and erosion, as well as the freeze-thaw action. The low hardness makes it an easy stone to work with, from the pyramids to small figurines.
Gemmy and lustrous, the warm amber spearpoints shine as a small cabinet piece. Small chalcopyrite clusters shine gold in the gray matrix of the specimen and pairs nicely with the yellow-orange Calcite.
3.25x 2.75 x 4.5 inches
includes a 4.75x 3.5 inch lucite base with name of mineral and locality engraved
This Item is Not Eligible for Shipping and is Curbside Pickup Only from the Hermann Park Museum location in Houston.