Buy 1 oz rhodium sponge sealed in tamper-evident assay packaging — rhodium in its raw, finely divided form. Sponge is the metal as it comes off the refining line, without the fabrication step that turns it into a minted bar, which is why it usually carries a lower premium per ounce.
What You’re Buying
- Weight – 1 troy oz of rhodium.
- Purity – .999 fine.
- Form – granular sponge, not a solid bar.
- Packaging – sealed. Leave it sealed: the packaging carries the assay.
Sponge or Bar?
Take sponge if you want the most rhodium per dollar and intend to hold it. Take a minted rhodium bar if resale matters more — a stamped bar with an assay card is easier for the next buyer to verify. Neither is IRA-eligible: the IRS approves only gold, silver, platinum and palladium. Supply and demand figures for rhodium are published annually by Johnson Matthey.
Rhodium is the most volatile metal we stock, so this listing is priced live rather than held at a fixed rate. Shipped fast, discreet and fully insured. Stepping up in size? Take the 5 oz rhodium sponge instead. We buy rhodium back through Sell to Us.