metamorphic
Yellow Jade or Honey Calcite
Nephrite or Jadeite variety, or crystalline Calcium Carbonate (CaCO3)
Hardness: 3 (Calcite) to 6-7 (Jade); Color: Honey-yellow, golden; Luster: Vitreous to waxy; Texture: Granular to microcrystalline; Transparency: Translucent to opaque.
- Hardness
- 3 (Calcite) to 6-7 (Jade)
- Color
- Honey-yellow, golden
- Luster
- Vitreous to waxy
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Physical properties
Hardness: 3 (Calcite) to 6-7 (Jade); Color: Honey-yellow, golden; Luster: Vitreous to waxy; Texture: Granular to microcrystalline; Transparency: Translucent to opaque.
Formation & geological history
Formed through metamorphic processes under high pressure (Jade) or via hydrothermal precipitation in sedimentary basins (Calcite). The geographic coordinates suggest Southeast Asia (Singapore/Malaysia region), where Nephrite jade and calcite-rich marbles are common in regional trade.
Uses & applications
Aesthetic jewelry, bracelets, prayer beads, and ornamental carving.
Geological facts
Yellow jade is often a trade name for honey-colored calcite or aragonite, though true nephrite jade can also occur in this hue due to iron inclusions. In Asian cultures, yellow specimens are often associated with wealth and good fortune.
Field identification & locations
To differentiate true jade from honey calcite, perform a hardness test: Jade will scratch glass, while calcite will not. These beads show a waxy luster and granular structure consistent with polished stone.
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