Industrial Component or Scrapped Jewelry Housing, 90% Gold Alloy (approx. 21.6K)
Gold Scrap / Industrial Component (Unspecified mount or casing) · Yellow Gold (High Karat Alloy). Contains approximately 10% alloying metals, likely copper and silver, giving it a rich but durable density.
Purity: 90% Gold (equivalent to 21.6 Karat or 900 Fine). Gold content is 90% pure gold, often used in specific international coins or industrial applications.
Type
Gold Scrap / Industrial Component (Unspecified mount or casing)
Purity
90% Gold (equivalent to 21.6 Karat or 900 Fine). Gold content is 90% pure gold, often used in specific international coins or industrial applications.
Gold Type
Yellow Gold (High Karat Alloy). Contains approximately 10% alloying metals, likely copper and silver, giving it a rich but durable density.
Weight
Estimated between 5.0 and 8.5 grams based on the visible thickness and structural density of the plate.
Description
A functional yellow gold component featuring a T-shaped geometry with three circular apertures. It appears to be a mounting plate or a heavy-duty internal casing segment, possibly removed from a high-end luxury item or scientific instrument. The rich color indicates high purity, while the rugged construction suggests it was designed for more than mere ornament.
Key Features
High-karat 900 fineness stamp, specific T-shape mounting configuration, and reinforced central bore with inner lip.
Color & Finish
Deep yellow with a satin-matte industrial finish. Displays significant wear, tool marks, and surface abrasions consistent with mechanical use.
Hallmarks & Stamps
Visible '90%' stamp on the left-wing section, indicating millennial fineness of 900. No visible maker’s marks or assay office symbols.
Dimensions Estimate
Approximately 30mm width, 25mm height, with varying thickness around the central reinforced bores.
Gemstones & Inlays
None. The item is purely metallic with functional apertures for screws or pins.
Clasp & Closure
Not applicable. The item features three attachment holes (bores) suggesting it was screwed or riveted onto a larger assembly.
Chain & Links
Not applicable. The item is a solid stamped and machined plate.
Craftsmanship Details
The item shows signs of being stamped from a sheet and then finished with mechanical drilling. Edge quality is irregular, indicating it was forcibly removed from a parent object.
Authentication Indicators
The '90%' stamp is the primary indicator. The color depth is consistent with 21K-22K gold. However, the industrial cutting marks suggest a need for XRF testing to confirm it isn't gold-plated brass.
Origin & Maker
Unknown industrial manufacturer or custom jeweler. The '90%' stamp is common in Middle Eastern, Asian, and European industrial gold standards.
Era & Period
Modern / Industrial (Late 20th Century to Present). The machining techniques and stamping style suggest contemporary manufacturing.
Age Estimate
Likely produced within the last 30-40 years (circa 1980s-2010s) based on the precision of the bores and standard stamping.
Cultural Significance
Represents the utilitarian use of precious metals in high-reliability applications where the physical properties of gold (non-corrosive) are prioritized over aesthetic beauty.
Condition Notes
Poor/Scrap condition. Significant mechanical damage, rough edges from being cut or detached, and surface oxidation in recessed areas. Grade: Salvage/Scrap.
Value Estimate
Primarily Melt Value. Calculated as (Weight in grams * 0.90 * Current Spot Price). Minimal to no premium for craftsmanship or design due to current damage.
Care & Maintenance
Requires no specific maintenance other than secure storage. If intended for refining, keep away from mercury which will dissolve the gold into an amalgam.
Similar Items
22K gold jewelry scrap, gold dental bridges, or industrial gold leaf/plating components.
Interesting Facts
90% gold (900 fine) was the standard for many 'Latin Monetary Union' gold coins and is a very common purity for high-end gold components in aerospace and medical electronics for its conductivity and corrosion resistance.