mineral

Orange Calcite

Calcium Carbonate (CaCO3)

Hardness: 3 on Mohs scale; Color: bright orange to pale peach; Luster: vitreous to waxy/soapy when polished; Crystal Structure: Trigonal (rhombohedral); Specific Gravity: 2.71.

Hardness: 3 on Mohs scale
Color: bright orange to pale peach
Luster: vitreous to waxy/soapy when polished

Identified July 10, 2026More mineral →

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Physical properties

Hardness: 3 on Mohs scale; Color: bright orange to pale peach; Luster: vitreous to waxy/soapy when polished; Crystal Structure: Trigonal (rhombohedral); Specific Gravity: 2.71.

Formation & geological history

Formed through sedimentary processes, often as chemical precipitates in marine environments or hydrothermal veins. It can be found in limestone deposits and hot spring areas.

Uses & applications

Primarily used for ornamental purposes, lapidary carvings, tumbled stones for collectors, and in metaphysical practices as a 'cleansing' stone.

Geological facts

Orange calcite gets its vibrant color from tiny inclusions of hematite or other iron oxides; it will effervesce (fizz) if a drop of weak hydrochloric acid or vinegar is applied due to its carbonate chemistry.

Field identification & locations

Identify by its softness (can be scratched by a copper coin) and distinctive waxy feel. Common locations include Mexico, USA, and Brazil. Collectors should look for saturated color and translucency.