mineral

Gold and Cubic Zirconia (San Judas Tadeo Pendant)

Native Gold (Au) with Synthetic Cubic Zirconia (ZrO2)

Hardness: 2.5-3 (Gold), 8-8.5 (CZ); Color: Bright yellow and colorless; Luster: Metallic (Gold) and Adamantine (CZ); Crystal Structure: Isometric; Cleavage: None/Hackly.

Hardness: 2
Color: Bright yellow and colorless
Luster: Metallic (Gold) and Adamantine (CZ)

Identified March 4, 2026More mineral →

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Physical properties

Hardness: 2.5-3 (Gold), 8-8.5 (CZ); Color: Bright yellow and colorless; Luster: Metallic (Gold) and Adamantine (CZ); Crystal Structure: Isometric; Cleavage: None/Hackly.

Formation & geological history

Gold is typically formed in hydrothermal veins or as alluvial placer deposits. Cubic Zirconia is a laboratory-created crystalline substance intended to simulate diamond.

Uses & applications

Used primarily in jewelry and religious iconography; gold is also used in electronics and as a financial reserve.

Geological facts

San Judas Tadeo (Saint Jude the Apostle) is known as the patron saint of lost causes. Gold is chemically inert and does not tarnish, making it ideal for heirloom jewelry.

Field identification & locations

Identify in the field by checking for hallmarks (e.g., 10k, 14k, 585) or using acid testing for gold purity. CZ can be identified by its high thermal conductivity and dispersion (fire) compared to glass.

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