I notice that the price seems to be almost a linear function of the surface area rather than the mass. Is the because of the difficulty in finishing?

Probably the surface are has something to do with their pricing, but I am glad the mass is not used, otherwise I would be paying over $600 for 2" cube instead of their asking price of approximately $300 (compared to their 1" cube). Tungsten is quite hard (about 7 in the Moh's hardness scale), but very hard to melt, because of its high melting point, despite they alloyed their tungsten with 5% of iron and nickel. I would say tungsten is relatively difficult to shape, but polishing would not be hard. They just use harder material as abrasives.

Is the cube made of pure Tungsten? (i.e. 99.95% Tungsten)

High purity. They add a little bit of copper and iron to it to make it stronger but not brittle because pure tungsten is very brittle. You'll love it - it's every bit the money. Extremely dense.

Under the details this says aluminum, are both the 2” and the 1” cubes tungsten?

When I purchased the 2" tungsten cube, it came with a 1" cube which was also made of tungsten.

Yes, it is a solid metal cube that weighs 5.2 lb., which is heavy for its size. If a piece of steel of this same size 2"x2"x2" it would only weigh about 2.3 lb.

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Midwest Tungsten Service Cube - 2" - Free 1" Cube with Purchase

Product ID: 369747338

Details

Brand
Midwest
Manufacturer Minimum Age (MONTHS)
168
Number of pieces
2
Product dimensions
5.1L x 5.1W
Puzzle type
3D Puzzle

🧊2" precision-machined cube

⚖️2.36 kg dense heft

🛩️Aerospace-grade tungsten alloy

Description

⚡ Own the weight of wonder — the ultimate desk statement piece!

FREE 1 CUBE INCLUDED - Double the wow factor with a complimentary mini cube for side-by-side density comparison.
AEROSPACE GRADE CRAFTSMANSHIP - Engineered from premium tungsten alloy for unmatched density and durability.
SAFE SLEEK AND SOPHISTICATED - Rounded edges ensure a smooth, non-toxic touch—perfect for your executive desk.
SURPRISINGLY HEAVY INSTANTLY CAPTIVATING - At 5.2 lbs, this palm-sized powerhouse commands attention and sparks conversation.
CERTIFIED AUTHENTICITY FASCINATING FACTS - Comes with a chemical composition certificate and intriguing tungsten trivia to impress your peers.

This 2" Midwest Tungsten Service Cube is a precision-machined, aerospace-grade tungsten alloy block weighing a hefty 2.36 kg (5.2 lbs). Its dense mass fits perfectly in your palm, making it a striking executive toy and conversation starter. Rounded edges ensure safe handling, and each purchase includes a free 1" cube plus a certificate of chemical composition and tungsten facts, elevating your workspace with a blend of science, style, and sophistication.

Specifications

ASIN	B012YE3MC2
Additional Features	Portable
Age Range Description	Adult
Best Sellers Rank	#835,263 in Fashion ( See Top 100 in Fashion ) #17,280 in Women's Bracelets
Brand Name	Midwest Tungsten Service
Color	Grey
Customer Package Type	Standard Packaging
Customer Reviews	4.8 4.8 out of 5 stars (125)
Educational Objective	Logical Thinking, Problem Solving Skill
Included Components	1 inch tungsten alloy cube
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Dimensions	5.1 x 5.1 x 0.1 centimeters
Item Dimensions L x W	5.1L x 5.1W centimeters
Item Shape	Cube
Item Weight	2.36 kg
Manufacturer	Midwest Tungsten Service
Manufacturer Part Number	MT-18F-2\"-cube
Manufacturer recommended age	14 years and up
Material Type	Tungsten
Material Type Free	Tungsten Alloy Free
Model Number	893
Number of Items	1
Number of Packs	2
Number of Pieces	2
Number of Players	1 player
Operation Mode	manual
Play Activity Location	Tabletop
Product Style	Modern
Puzzle Type	3D Puzzle
Set Name	Tungsten Cube Set
Size	2"
Skill Level	All
Theme	cube
Unit Count	1.0 Count

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