Cobalt Metal, 99.99% (4N)

Name: Cobalt Metal, 99.99% (4N)
Brand: Kazakh Elements
SKU: cobalt

Silver-gray cobalt chunks that snap straight onto a magnet.

Co · CobaltPure Metal

Price

From: $24

$156/kg this listing (250 g)ledger $154.32 to $1,853.53/kg · mid $428.8 · 3 records · low confidence

Positioned against the site's sourced reference ledger (retail tier) via the price-gauge engine, at the listing's median pack size.

Size	Mass (g)	Price	Per gram
150 g	150	$24	$0.16/g
250 g	250	$39	$0.16/g
450 g	450	$59	$0.13/g

Origin & provenance

Origin	Kazakhstan (KZ)
Source	Private Collection
Acquired	—
Chain	Kazakh Elements retail stock (periodictech.com catalog) Imported to the lanthanides.io marketplace2026-07-28

Specifications

Attribute	Value
Element(s)	Co
Purity	99.99% (4N)
Form	chunks
Packaging	sealed bag, moisture-free
Origin	Kazakhstan

Description

Cobalt is one of the few elements that stay magnetic at room temperature, and a magnet will pick these chunks up without hesitation. It is a hard, silver-gray metal; this lot is 4N grade in irregular broken pieces.

Specs: • Purity: 99.99% (4N) • Form: chunks • Packaging: sealed bag, moisture-free • Origin: Kazakhstan

Seller

Kazakh ElementsVerified

Kazakhstan (KZ) · Member since Mar 11, 2026 · 19 listings

Rare-earth and specialty-metal samples, sealed and shipped from stock.

How buyer protection works

Every item is photographed before dispatch. On arrival, photograph the sealed parcel and take a short video of the unboxing; any mismatch is settled against the published specification with that documentation.

The seller’s store operates a 30-day return-by-mail policy, and payment is settled directly with the seller.

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