Cu-Au
Alloy
Tumbaga
Tumbaga
No real-sample photo
A visible single-element sample image is generally not available
A traditional pre-Columbian alloy of copper and gold. Its lowered melting point makes it easy to work and approachable. Through depletion gilding, it dissolves surface copper to appear richer in gold than it is — not deceit, but a cultural craft of polishing sacred symbols. Combining copper's commonness with gold's grace, an approachable noble and spiritual bearer of ancient ritual.
Jungian Type: Type 3
Personality tendencies across 4 dimensions
内向 (I)68%外向 (E)
50
直観 (N)40%感覚 (S)
50
感情 (F)38%思考 (T)
50
知覚 (P)35%判断 (J)
50
Enneagram Detailed Scores
Score distribution across 9 types
Big Five Personality Traits
Personality analysis based on the 5-factor model
Alloy Characteristics
Personality traits from metal physical properties
💰Price & Economic Data
Market price and economic characteristics (as of 2026-06)
Unit Price (est.)
$8,000
per kg
Price Range
$3,000–20,000/kg（金含有率で大きく変動）
Market Trends & Notes
金含有率で価値が大きく変わる歴史的合金。考古・美術的価値が高い。
💑Compatible Materials
Materials with good metallurgical and personality compatibility
