Two Lovely Calcite Mineral Specimens
This is a great pair of specimens both showing growth zonation (bands of different colors). One has an unusual green tinge. The other shows good rombohedral cleavage, and some characteristic weathering. You get both of the specimens pictured. 1.2 oz.
Calcite is a carbonate mineral with the formula CaCO3, calcium carbonate. Calcite is a common mineral in sedimentary and metamorphic environments, and can form as a primary igneous mineral as well. It is extremely stable over wide temperature extremes, alters its crystal structure to form aragonite at very high pressures, and is sensitive to acids.
This would be a great gift for the budding geologist or scientist.
You will receive one like the specimens pictured.
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I will ship anywhere, and using any special service, upon request. Otherwise, I have pre-selected the most economical shipping service. Again, I am glad to make special arrangements--like local pick-up, just ask!
Just contact me within: 7 days of delivery
Ship items back to me within: 14 days of delivery
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for: