---
product_id: 682939230
title: "Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal"
brand: "moderock"
price: "27939 kr"
currency: DKK
in_stock: true
reviews_count: 2
category: "Moderock"
url: https://www.desertcart.dk/products/682939230-moderock-high-purity-osmium-cube-99-95-purity-0-39in
store_origin: DK
region: Denmark
---

# precise 10mm cubic form 99.95% ultra-pure osmium density ~22 g/cm³, ultra-heavy Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal

**Brand:** moderock
**Price:** 27939 kr
**Availability:** ✅ In Stock

## Summary

> 🔷 Hold Rarity in Your Hand — The Ultimate Osmium Statement Cube

## Quick Answers

- **What is this?** Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal by moderock
- **How much does it cost?** 27939 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/682939230-moderock-high-purity-osmium-cube-99-95-purity-0-39in)

## Best For

- moderock enthusiasts

## Why This Product

- Trusted moderock brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flawless Mirror Polish:** Expertly wire-cut and hand-polished to a stunning blue mirror finish that commands attention on any desk or display.
- • **Rarest Heavy Metal Cube:** Own a piece of earth’s rarest platinum-group metal, rarer than iridium and produced under a ton annually.
- • **Next-Gen Quality Upgrade:** Fourth-generation manufacturing delivers superior surface quality and density, making this cube a true collector’s gem.
- • **Unmatched Density & Weight:** Feel the impressive heft of osmium’s 22 g/cm³ density — heavier than tungsten — a tactile reminder of exclusivity.
- • **Precision Crafted 10mm Cube:** Perfectly sized and chamfered for a sleek, modern aesthetic that fits seamlessly into your curated collection.

## Overview

The Moderock High-Purity Osmium Cube is a rare, 99.95% pure osmium metal block, precision-crafted into a 10mm polished blue cube. With a density around 22 g/cm³, it’s one of the heaviest and rarest metals on earth, featuring a unique mirror finish and chamfered edges. This fourth-generation osmium cube is a collector’s dream, combining scientific rarity with modern design and impeccable craftsmanship.

## Description

Product description osmium is a heavy platinum precious metal, is also a very low content of stable elements in the earth's crust, rarer than iridium, the world's annual production is less than a ton, very rare, and osmium metal is basically sold in powder form, powder metallurgy to get the osmium block has been quite small, and melting to get the osmium close to the theoretical density of osmium is even fewer and fewer. Safety Warning Handle with care. Do not ingest. Avoid contact with skin and eyes. Keep out of reach of children and pets.

Review: Gorgeous mirror-finished cube, and packed very well - Rhenium has a beautiful, shiny luster, and is also very tough, and scratch resistant (only tungsten and chromium are harder). It is one of the densest metals (more so than tungsten), so you'll want to hold it in your hand to feel the heft. And good news; your skin oils won't tarnish it at all, just wipe the mirror-finish clean with a soft cloth. I was very pleased with the high quality. The packaging was generous, and arrives in a somewhat comically-oversized tin box, and nested inside round screw-cap container within (as pictured in the listing). Shipping took about 2 weeks.
Review: High marks on this elemental sample! - Stunning sample of Rhenium. Absolutely satisfied. It will be the focal point of my collection!

## Features

- osmium metal, precious metal periodic table cubic, osmium cubic, high purity osmium target, 10mm, Os ≥ 99.95%, made a slight chamfer treatment
- the actual density of 20.5 ~ 21.7 or so (powder sintering process reasons, so difficult to process the metal can not reach the theoretical density, only as close as possible. At the same time, due to each batch of production process parameters will be a little different, so the density will also be some differences), at the same time, due to the size of the existence of positive and negative tolerances, so the weight of each generally between 21.5 ~ 23 grams.
- Osmium is very difficult to process, to be made into a regular shape, and grinding machine processing, wire cutting processing are difficult.
- Osmium is almost the only metal that remains brittle even near its melting point, it can not be thermally processed or deformed under almost any circumstances, which leads to unusually difficult processing, osmium processing products are very rare.
- our osmium target material is made of 9995 osmium powder sintered at high temperature, the highest density of 22 or more, and then through the wire cutting, grinding machine, hand-polished from the production of a unique blue color, impressive feel, as well as a high cost-effective. Meanwhile, our osmium cubes have been upgraded to the fourth generation, with higher density than before, as well as better surface quality and mirror effect.
- osmium is a heavy platinum precious metal, is also a very low content of stable elements in the earth's crust, rarer than iridium, the world's annual production is less than a ton, very rare, and osmium metal is basically sold in powder form, powder metallurgy to get the osmium block has been quite small, and melting to get the osmium close to the theoretical density of osmium is even fewer and fewer.
- osmium is a fairly dense monomers in nature, the density is as high as 22.59 g/cm3, the melting point is very high, up to 3045 ° C. In nature, osmium is usually sold in the form of osmium, and the density of osmium is very high. Osmium in nature usually in the form of pure metals or alloys exist, and osmium is basically in the form of copper and nickel mining and refining process by-products and production.
- Osmium powder has a grayish-blue color, and osmium lumps have a deep, fascinating blue color. Although there are places on the Internet that the blue color of osmium comes from osmium dioxide, but the owner did not find any evidence to prove that the blue color of osmium comes from osmium dioxide, but rather the fresh fracture surface of osmium is also blue, even if it is cut in an argon environment is blue, so the owner believes that the blue color is the true color of osmium . Osmium in its dense state is stable at room temperature, osmium metal is hard and brittle and is easily broken into powder.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYY7VQMF |
| Base | Metal |
| Base Color | blue |
| Best Sellers Rank | 321,594 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 237 in Specialty Metal Raw Materials |
| Brand | Moderock |
| Brand Name | Moderock |
| Colour | Os |
| Customer Reviews | 5.0 out of 5 stars 2 Reviews |
| Extended Length | 0.39 Inches |
| Finish Type | Polished |
| Frame Material Type | Osmium |
| Frame material | Osmium |
| Furniture Finish | Unfinished |
| Furniture Leg Material | Metal |
| Handle Color | blue |
| Handle Finish Type | Polished |
| Handle Material | Metal |
| Includes All Assembly Tools | No |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required? | No |
| Is Customizable? | No |
| Is Stain Resistant | No |
| Is the item resizeable? | No |
| Item Depth | 0.39 inches |
| Item Diameter | 10 Millimetres |
| Item Dimensions | 10 x 10 x 10 millimetres |
| Item Dimensions D x W x H | 10D x 10W x 10H millimetres |
| Item Dimensions L x W x H | 10L x 10W x 10H millimetres |
| Item Length | 0.39 Inches |
| Item Shape | Cube |
| Item Weight | 0.05 Pounds |
| Item Width | 0.39 Inches |
| Item weight | 0.05 Pounds |
| Manufacturer | Moderock Ltd. |
| Manufacturer Part Number | XY-01 |
| Material Type | Osmium |
| Model Name | Moderock |
| Natural Variation Type | density, color |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Care Instructions | Wipe with Dry Cloth |
| Product dimensions | 10D x 10W x 10H millimetres |
| Recommended Uses For Product | Displaying |
| Seating Capacity | 1 |
| Size | 0.39 inches |
| Specific Uses For Product | Displaying |
| Style Name | Modern/Unique |
| Table Design | End Table |
| Tabletop Thickness | 0.39 Inches |
| Theme | Modern/Unique |
| Tilting | No |
| Top Color | blue |
| Top Material Type | Osmium |
| Top material type | Osmium |
| Unextended Seating Capacity | 1 |

## Product Details

- **Brand:** Moderock
- **Colour:** Os
- **Frame material:** Osmium
- **Item weight:** 23 g
- **Product dimensions:** 10D x 10W x 10H millimetres

## Images

![Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal - Image 1](https://m.media-amazon.com/images/I/61k4npJdFhL.jpg)
![Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal - Image 2](https://m.media-amazon.com/images/I/71zRvpRmqwL.jpg)
![Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal - Image 3](https://m.media-amazon.com/images/I/612kIuSd7mL.jpg)
![Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal - Image 4](https://m.media-amazon.com/images/I/71SjqgNOSRL.jpg)
![Moderock High-Purity Osmium Cube, 99.95% Purity, 0.39in, Blue, Specialty Metal - Image 5](https://m.media-amazon.com/images/I/71ZKMFCrAqL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gorgeous mirror-finished cube, and packed very well
*by D***0 on 18 July 2026*

Rhenium has a beautiful, shiny luster, and is also very tough, and scratch resistant (only tungsten and chromium are harder). It is one of the densest metals (more so than tungsten), so you'll want to hold it in your hand to feel the heft. And good news; your skin oils won't tarnish it at all, just wipe the mirror-finish clean with a soft cloth. I was very pleased with the high quality. The packaging was generous, and arrives in a somewhat comically-oversized tin box, and nested inside round screw-cap container within (as pictured in the listing). Shipping took about 2 weeks.

### ⭐⭐⭐⭐⭐ High marks on this elemental sample!
*by J***N on 4 August 2026*

Stunning sample of Rhenium. Absolutely satisfied. It will be the focal point of my collection!

## Frequently Bought Together

- Moderock Iridium Metal Elements Periodic Table, Mirror Finished Density Cubes Collection, Purity 99.95%, Weight 21.5g/0.75Oz (Ir Cubic 10mm/0.39")
- The Elements Book: A Visual Encyclopedia of the Periodic Table (DK Our World in Pictures)
- LINKTOR Chemistry Molecular Model Kit (444 Pieces), Student or Teacher Set for Organic and Inorganic Chemistry Learning, Motivate Enthusiasm for Learning and Raising Space Imagination, A Fullerene Set

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-09-19*