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448g / 0.988lbs / 15.80oz 2.40" x 1.19" x 3.87" Calcite is a calcium carbonate mineral with a hardness of 3. Calcites are among the most varied and abundant crystals, and they occur in a wide variety of forms and colors. The molecular structure of the crystals is rhombohedral, but specimens can appear as scalenohedrons, rhombohedrons, prisms, masses, stalactites, etc. Calcite makes up a major part of most marbles and limestones. Calcite crystals are found on every continent.
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🇺🇸 Ship from USA · On Agora since 2026
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